Best Cot Bed Mattress in UK

Best Cot Bed Mattress in UK

If you’re super eager to welcome the little member in your family, you’re undoubtedly focused on buying nursery as fast as you can. Baby swing, Jumperoos, hammocks and cribs probably are the things which you’re most concerned about, and you’re checking every little detail to ensure the quality of each item. The last commodity to occupy your mind is probably going to be a cot mattress, yet it falls under the ‘most important’ category. 

So, you need to take an ample amount of time in choosing the best baby cot mattress in the UK and give the much-needed importance it deserves.

Here’s a thing, according to most people, the softer the cot bed mattress, the better for babies. But it’s certainly not a fact. According to National Childbirth Trust (NCT), baby mattresses have to be firm because choosing a very soft surface might increase the risk of severe suffocation problems in babies.

Cot bed mattress should also be completely waterproof. This article has included the best baby cot mattresses for babies in order to provide you with wholesome knowledge so that you can select only the best for your baby.

10 Best Cot Bed Mattress in UK

1st Place
The Little Green Sheep Natural Twist Cot Bed Mattress By The Little Green Sheep
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2 MOTHER NURTURE Classic Travel Cot Mattress By MOTHER NURTURE
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3 Silentnight Safe Nights Airflow Cot / Toddler Bed Mattress By Silentnight
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4 ClevaMama ClevaFoam Baby and Toddler Support Mattress By ClevaMama
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5 LaLeLu Baby Hammock By Alvi
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1. The Little Green Sheep Natural Twist Cot Bed Mattress

best cot bed mattress

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📏 Product Dimensions140 x 70 x 10 cm
🛏️ Mattress TypeFoam
🧶 Material UsedSoft Cotton, Breathable Wool, Coconut Coir, Natural Latex
🛡️ Guarantee5 years
⚖️ Product Weight9 kg

This Little Green Sheep Natural Twist is the best cot bed mattress for your baby. That’s why it has occupied the No.1 position in this best cot mattress review. It won bronze in 2014 at the Mother and Baby Awards.

The natural twist actually means that it has a double-sided system with a firm side and a soft side. That allows you to choose the firm side of the mattress in the initial months of your baby and simply turn it to the softer side after he or she becomes one year old. You can use this until your little one becomes a 5-year old as the diameter of this mattress is 140 cm x 70 cm.

Little Green Sheep has only chosen breathable cotton to make this mattress. The cover is specially designed to suit sensitive skin as it’s made of 100% unbleached and undyed cotton with a herringbone weave. This baby cot bed mattress is totally free from dangerous chemicals and toxins.

This mattress will not cause any allergic reactions to the little ones as it’s made of natural ingredients, like natural latex and supportive coconut coir. It offers a temperature regulating technology with an anti-dust mite system. It also provides natural fire-proofing without using any harmful fire retardant chemical spray.


  1. This baby mattress gives your child the right amount of support with their gradual growth spurt until they are 5 years old.
  2. The materials used are natural and provide excellent breathability to the mattress.
  3. The rubber latex that is used gives extra spring and durability to this spring cot bed mattress.


  1. The mattress does not come with a waterproof cover. You need to add a mattress protector in order to prevent any damage.
  2. The smell that it emits due to the natural materials used can be a cause of discomfort for many.

Quick Verdict

The Little Green Sheep by cot mattress is a value for money product because it gives your baby undisturbed sleep with maximum comfort. The mattress is made using breathable cotton and it is also hypoallergenic. The cover is 100% unbleached and made using undyed cotton but it not being waterproof is certainly a drawback of this item. 

2. MOTHER NURTURE Classic Travel Cot Mattress

best baby cot mattress UK

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📏 Product Dimensions140 x 70 x 10 cm | 119 x 59 x 5 cm | 95 x 65 x 7.5 cm | 95 x 65 x 3.5 cm
🛏️ Mattress TypeFoam
🧶 Material UsedEco-friendly fibre, Cosyquilt fabric, Nursery grade foam
🛡️ GuaranteeNo information
⚖️ Product Weight1.4 kg

This Mother Nurture Classic Travel cot mattress is a budget-friendly option, yet it provides much comfort. The reversible design is made of high-quality breathable foam, which is entirely dent-resistant.

This baby cot mattress is firm enough to provide the new-borns with the utmost support while they sleep. This mattress comes with a removable cover, which allows you to wash it whenever needed. You should wash it at a high temperature of 40 degrees C.

This cot mattress from Mother Nurture comes in 4 different sizes, such as 140 cm x 70 cm x 10 cm, 95 cm x 65 cm x 7.5 cm, 119 cm x 59 cm x 5 cm and lastly 95 cm x 65 cm x 3.5 cm. So, you can choose the perfect one which suits the crib size.

Also, this cot mattress can be used until you celebrate your baby’s second birthday (0-36 months). The lightweight design makes it highly portable and travel friendly. It offers premium springs that provide your little one with cozy and pleasant sleep every night.

The Mother Nurture baby mattress is water-resistant, and the foam is made without the use of any organophosphate flame retardant. You can rest assured with this mattress as it conforms to British Standard to provide utmost safety to your babies. 


  1. Free from any allergy containing substance and helps in keeping your baby’s health protected.
  2. Very useful when it comes to washing and cleaning the product. This comes with a waterproof cover and can be washed on a 40°C wash cycle.
  3. The foams used are free from organophosphate flame retardants. This makes it very safe and user friendly for your baby.


  1. The stink that comes from the foam can be too much for some children.
  2. The foam used for this memory foam cot bed mattress is not of quality standard and has been found to show a roughness to it.

Quick Verdict

This mattress by Mother Nurture is justifiably the best cot mattress under low price, yet it doesn’t compromise with the quality. It is made of made of high-quality breathable foam which is waterproof, has a removable cover, and comes in many sizes. All these qualities make it an excellent purchase.

3. Silentnight Safe Nights Airflow Cot / Toddler Bed Mattress

Best Cot Bed Mattress UK

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📏 Product Dimensions140 x 70 x 10 cm | 120 x 60 x 10 cm
🛏️ Mattress TypeEco Comfort Fibre
🧶 Material UsedPolyester Core
🛡️ Guarantee3 years
⚖️ Product Weight4 kg

Silentnight is a well-known brand in the cot mattress industry in the UK. It is a cost-effective product that incorporates all the basics of a good baby mattress. It is available in two sizes, 120 cm x 60 cm and 140 cm x 70 cm, to suit both new-borns and toddlers.

The thing that makes this mattress one of the best cot bed mattress on our list is quite shocking as it has no foam! Foam-free cores are proven to be safer for babies as it completely eliminates the risks of developing allergies. That’s why Silentnight came up with a new technology which offers you a cot mattress made of Eco Comfort Fibre Layers.

Needless to say, these layers are totally recyclable. The cot mattress allows natural airflow because of the fibre layers which are being used. So, it is equally firm and soft and prevents sagging to help your baby get maximum support during his or her sleep.

Silentnight Safe Nights Airflow mattress comes with a softly knitted washable cover for easy cleaning. This mattress is totally odourless and not chemically treated, which ensures extra safety. However, there is no statement from the brand which confirms this cot bed mattress being water-resistant.  


  1. It is made with a breathable eco comfort fibre that allows the natural airflow to create a comfortable sleeping for your child.
  2. The core of the mattress is foam-free, which gives it a recyclable feature and thus creating a healthy environment for the child.
  3. It comes with a removable and washable cover. This feature provides hygiene standards that are very important for a child’s growth.


  1. The mattress can be extra firm which might reduce its comfort factor.

Quick Verdict

This mattress by Silentnight is an ideal option for eco-conscious parents as this cot mattress is made of Eco Comfort Fibre Layers. The fibrous core stays firm because it helps air to pass within and around the mattress while the removable cover confirms easy cleaning. So, it’s a nice buy within a low price range.

4. ClevaMama ClevaFoam Baby and Toddler Support Mattress

best baby cot mattress UK

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📏 Product Dimensions140 x 70 x 9 cm | 120 x 60 x 9 cm
🛏️ Mattress TypeFoam
🧶 Material UsedClevaFoam
🛡️ Guarantee3 years
⚖️ Product Weight3.9 kg

The CleaveFoam used in this mattress is very supportive and breathable. The 3D open cell structure of the foam allows a significant amount of airflow. So the mattress becomes firm and supports growing babies. This baby cot mattress also reduces a significant amount of heat retention because it regulates body temperature. Also, as the foam comes with reflex support, it provides your baby to have a perfect spinal alignment.

What makes it the best cot mattress is that the CleaveMama CleaveFoam is a hypoallergenic, toxin-free, and phthalate-free item that makes it ideal for babies who have asthma or any type of allergy. This cot mattress has a removable and washable cover, and it ensures great breathability. Also, it includes a moisture-wicking fabric to keep your baby cool during sleep.

CleaveMama’s mattress is available in 2 sizes to select the perfect one according to the crib you have. This product has received several amazing reviews on Amazon, which proves that parents all around the world have faith in this mattress.


  1. This is the only mattress that comes with prevention for flat head syndrome for your child. It helps in reducing the pressure on the baby’s head by bringing in extra support.
  2. This is the optimum choice for children having asthma and any kind of allergies.
  3. It can be easily cleaned.


  1. The fit of the mattress may not be suitable for everyone.
  2. Comes with a considerable pocket pinch.

Quick Verdict

The ClevaFoam Baby and Toddler Support Mattress by ClevaMama offers appreciable breathability and retains less amount of heat. It comes in different sizes to choose from. This mattress has a moisture-wicking fabric and the cover is also removable, although it’s not 100% waterproof. 

5. Alvi- Comfort Travel Cot Mattress

best cot bed mattress

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📏 Product Dimensions120 x 60 x 6 cm
🛏️ Mattress TypeFoam
🧶 Material UsedPolyurethane foam
🛡️ GuaranteeNo information
⚖️ Product Weight921 g

Alvi- Comfort Travel Cot Mattress falls under the low price category, yet it ensures great comfort and support to your little ones during his or her good night’s sleep. Its foldable design makes it highly convenient to suit any travel cot. The size of this baby cot mattress is 120 cm x 60 cm.

While most of the travel cot mattresses only offer a slightly padded and quite thin core, this one comes with a great quality child-friendly 6 cm thick foam. This polyurethane foam makes it a firm mattress, providing the right amount of hardness a growing baby needs. 

The cheaper travel cot mattress alternatives usually have polyester or nylon covers that disrupt a baby’s sleep. But Alvi – Comfort mattress comes with a breathable cover made of soft cotton to help your baby get a quiet and undisturbed sleeping experience. It also has a better moisture-absorbing formula compared to the synthetic fabric covers. 

This odourless travel cot mattress by Alvi has a lightweight design for great portability. You can fold the mattress 3 times and put it in the carry case it comes with. The cover of this mattress is removable and can be cleaned in the washing machine at a 30 degree C. This item can be tumble-dried also.


  1. The ideal mattress for travelling purposes. The 120×60 size of this mattress makes it the best cot mattress for fitting in almost every travel bed.
  2. This travel cot mattress’s thickness makes it very comfortable for your baby to have a comfortable night’s sleep.
  3. Alvi uses materials that are of superior quality and comes with a removable cover for easy cleaning.


  1. The length and width of the travel cot may not be standard.

Quick Verdict

If you are looking for a travel cot mattress within a cheap price point, consider it perfect. It has a comfortable child-friendly 6 cm thick foam and a washable cover. Also, the foldable structure is very travel-friendly.

Also read: Best Lightweight Compact Stroller for Travel in UK

6. AirComfort Eco Breathable Baby Cot Bed Mattress

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AirComfort company has used eco-friendly polyester fibre to make the core of this baby cot mattress. This ensures great ventilation so that your baby sweats less when he or she is having a sound sleep. Its Rebounce basic nursery spec fibre provides much support as it evenly distributes the body weight in the mattress. With this, your little one gets amazing back support and comfort to get healthy body growth. 

Being one of the best cot bed mattress, this Eco Breathable Cot Bed mattress comes in 2 different sizes, such as 120 cm x 60 cm x 13 cm and 140 cm x 70 cm x 13 cm. You can buy one which is suitable for the crib of your child. This cot mattress is perfect for newborns and can be used until he or she becomes a 4-year old toddler (0 – 48 months).

The breathable mattress by AirComfort has a reversible design, which allows you to use both sides of this cot mattress. It is also made of hypoallergenic ingredients that do away with the chances of allergies.

The removable cover of this item is softly quilted and has a water-resistant lining to prevent liquid absorption. The cover ensures quick and easy cleaning, as it is completely machine washable. You need to set a high temperature of 40 degrees C to wash this cover. 


  1. This spring cot bed mattress is made of Rebounce nursery spec special fibre that provides a superior quality comfort to your baby’s sleeping.
  2. The mattress is made of fully breathable and eco-friendly materials that provide a healthy environment and proper ventilation while the child sleeps.


  1. The spring quality of the mattress is not of high quality.

Quick Verdict

You can absolutely go for buying this one if you don’t have any problems with the eco polyester fibre core it has. It gives much support and comfort to your baby. This mattress offers 2 sizes, and both of them have a thick 13 cm core.

7. Obaby Natural Coir Wool Cot Bed Mattress

Best Cot Bed Mattress UK

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Obaby Natural Coir Wool Cot Bed Mattress has a soft-touch bamboo fabric that is completely organic. This breathable and resilient core has coconut coir with a natural latex bond to provide a natural springy mechanism when your baby is dreaming while sleeping.

Obaby has used luxurious lambswool, which amazingly regulates your baby’s body temperature. Its moisture-absorbing technology makes sure your little one is not sweating while he or she has to sleep. This cot bed mattress’s size is 140 cm x 70 cm, which is suitable for every cot bed Obaby manufactures.

For a long time, we have believed that cotton is the best option for a baby mattress. But because of the advancement of technology, various excellent options are now being used in the filling of mattresses, which are way too better than cotton. That’s why Obaby uses 100% organic bamboo fibers in mattress manufacturing.

This eco-friendly fibre is softer, more absorbent, and breathable than cotton. Also, this product has antibacterial properties which guarantee full protection to your baby against harmful bacteria. No dangerous chemical is used in the making of this mattress.


  1. The soft bamboo material is a great antibacterial component giving a safe and comfortable sleeping.
  2. It is made with 100% eco-friendly and highly renewable fabric. It also helps in maintaining the body temperature and maximum moisture comfort for your child.
  3. This cot mattress is extremely durable and comes with added springy feel due to the coconut coir that is used for its core.


  1. Comes with a repulsive chemical smell.
  2. Thickness is not sufficient.

Quick Verdict

It is certainly a luxurious cot bed mattress having organic bamboo fibres. The natural properties make it an antibacterial product. So, you can buy this if you don’t have a certain limited budget.

8. Eve Sleep Baby Cot Mattress

best baby cot mattress UK

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Eve Sleep offers this pocket spring cot bed mattress, which confirms maximum support and comfort without any dipping. Durable and luxurious foam is used to take care of the little neck and keep all the body pains away from your precious one. This mattress comes in 2 different sizes; they are 120 cm x 60 cm and 140 cm x 70 cm. Also, you can use this cot bed mattress until your baby is 6 years old.

This is one of the best cot mattress on our list. It has a Careful 3D fabric that gives your child a breathable surface when they are having the quietest time of the day. This mattress’s multi-layered structure is divided by little dividers to provide a great amount of air circulation. The moisture-wicking fabric helps in keeping your baby sweat-free.

The mattress cover has antibacterial properties that keep little bugs away from your child. Also, it is completely a child-friendly formula which will not cause any skin problems. This cover is 100% waterproof, so you need not worry about accidental spills or leaks. Eve Sleep’s mattress can be easily removed in order to clean. You have to set a temperature of around 60 degrees C for cleaning purposes.


  1. The soft fabric that is used in making the mattress makes it extremely breathable and comfortable for your child’s sleep.
  2. This durable pocket spring cot bed mattress provides high-quality measures for your baby to sleep well.
  3. The premium quality foam gives an anti-bacterial feature. It also ensures that the mattress is breathable.


  1. The waterproof cover sometimes leaks causing difficulty in sleeping.
  2. Comes with a higher price tag.

Quick Verdict

It is one of the best pocket spring cot bed mattresses in the market. The material has an antibacterial formula, and it’s waterproof. It has got many 4 – 4.5/5 – star reviews on Amazon, which proves customer satisfaction.

9. Kinder Valley Kinder Flow Mattress

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If you are looking for a medium-range cot bed mattress which would incorporate the basics of a baby mattress, then this is the one for you. Kinder Valley has used a certain nursery-grade poly-fibre which gives your baby a considerable amount of support and comfort.

It is packed with high-density polyester pads which have great moisture-absorbing technology. That’s why you can get the best out of this mattress during summers, as it will prevent your little ones from sweating. 

Although it’s an average product, it incorporates useful and important qualities. Most of the water-resistant covers you get at this price point, lack breathability. So they do not help your child get an undisturbed and comfortable sleep experience. But Kinder Valley Kinder Flow mattress has been made keeping that in mind. Its waterproof formula provides great breathability. 

The cover of this mattress is ideal for washing machines. The easy zip-lock system allows you to have no trouble while removing it. It can be washed at a high temperature, but make sure you do not cross 40 degrees C.


  1. This cot mattress is an ideal option for children having eczema and asthma. This comes with an anti-dust mite resistant cover that helps in preventing these diseases.
  2. You do not have to worry about water leakage. It is made with water resistance technology.
  3. The poly fibre with which these mattresses are made helps in providing the much-needed posture and support for your baby.


  1. The zipper is of very poor quality and is found to have become dysfunctional very fast.
  2. The thickness of the mattress is not sufficient enough to give proper support to the baby.

Quick Verdict

From comfort, breathability, support to waterproofing, and easy cleaning, this mattress checks all the boxes. It is definitely a good one compared to the price you have to pay. But, polyester pads do not provide much support as other higher brands do.  

10. Panda Kids Memory Foam Bamboo Mattress

Best Cot Bed Mattress UK

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Panda Kids makes one of the best memory foam cot bed mattresses in the UK. This company is trusted by parents across the globe for the amazing, high-quality cot bed mattress it manufactures. They use a combination of airflow-foam and hydro-foam to confirm the perfect amount of firmness a growing baby’s body needs. Also, it allows excellent air circulation around and within the mattress, which provides great breathability. The diameter of this mattress is 120 cm x 60 cm.

The multi-layer structure of the foam decreases movements by 30%. Panda Kids has used bamboo fibre to offer a moisture-wicking fabric. This ensures that your baby sweats less in sleep. As it distributes body weight evenly, your baby doesn’t develop any pains. This season friendly mattress can be used throughout the year as the fabric allows airflow in summers and has a thermal regulating technology to keep your baby warm during winter.

Panda Kids Memory Foam Bamboo Mattress has an anti-slip system. It comes with a long-lasting, water-resistant layer that gives full protection to the mattress from sudden spills. Also, the wet surface develops bacteria quickly. But, be assured as the waterproof formula has antibacterial properties to keep mold, dust mites, and fungi at bay.


  1. This cot mattress uses gel capsules with superior quality memory foam. This is extremely beneficial in reducing excess heating and allows proper airflow.
  2. The support base of the mattress is built in such a way that the weight can be distributed all over the mattress. This helps in relieving the pressure points.
  3. Bamboo fibre has a natural anti-bacterial capacity. This makes the mattress highly efficient for a toddler’s use giving enough hygiene.


  1. It doesn’t come with much affordability.
  2. The size of the mattress causes discomfort in some cases.

Quick Verdict

If you’re looking for a memory foam mattress, go for this one without any hesitation. It is made with breathable and supportive 3rd generation memory foam. But, keep in mind that it falls under the expensive category.

How to Choose the Best Baby Cot Mattress

Your child is going to enjoy most of the time in his or her crib. That’s why you need to buy a good cot bed mattress, which will provide a comfortable sleep each night. Also, you should look for firm mattresses for babies as the little neck and bones need hardness to grow perfectly, unlike any adult mattress. Apart from this, there are a few other important aspects that a baby mattress should have. These are discussed below –

1. Types of Mattresses

Types of Baby Cot Mattresses

Cot bed mattresses are widely available in innerspring and foam models. You should look for high-density foam for giving your baby maximum comfort. 

Innerspring mattresses are generally expensive. But the price is worth it because they last for a very long period of time. 

You also have an option of luxurious organic mattresses that are completely free from chemicals. They are expensive, but the eco-friendly ingredients make them worth every penny.

Some different types of baby cot bed mattresses are talked about below

i. Coil Spring Mattress

Coil spring mattress is great in providing much neck and back support. It also allows a good amount of air circulation between the coils to regulate body temperature. The coil spring mattress also provides extra life to the cots during the growing stage of the child. It is mostly advisable to use cotton covers to make the mattress more suitable for the baby’s comfort.

ii. Memory Foam and Hybrid Mattress

Memory foam mattresses tend to get steamy at times. But this problem does not occur if you choose a hybrid mattress. Because different types of foams, such as hydro-foam and airflow-foam, are used, these mattresses allow proper breathability to ensure a cooler environment for sleeping. The hybrid mattress also offers a wide range of firmness and helps in providing edge support as well. But the only demerit of this kind is they come on the expensive side.

iii. Pocket Spring Mattress

Simple Spring Mattresses incorporate springs that are placed in a rigid frame. But, a Pocket Spring Mattress includes coiled springs which are secured in individual pockets. This system allows independent movements of each and every spring pocket so that your little one can have better support. A pocket spring mattress will cost you much more than any regular spring mattress. 

iv. Natural Fiber Mattress

If you are an eco-conscious parent, then you should buy a Natural Fibre Mattress. An organic baby mattress, which is certified by the manufacturers, will cost you much more. But you will get 100% organic wool or cotton, which are not made using harmful industrial chemicals.

So you can be assured that it will not cause any allergic reactions to the tender skin. You can check if your organic mattress has a GREENGUARD certification. This certification measures the chemical release from the mattress. 

v. Dual-Core Mattress 

Dual-core mattresses give your child much-needed assistance during the very important growth stage. They are made with an advanced technology of coir and foam built up that comes with matching micro pocket springs. The foam is proven to help your child get the proper bone structure.

Dual-core mattresses fall under the expensive side, but they are much durable. So, you can use these mattresses when you welcome your newborn until they become a toddler. 

vi. Hollow Frame Mattress

These mattresses are great on the breathability and hygiene aspects. The entire mattress, including the mesh cover, can be washed and cleaned thoroughly. The hollow columns allow more air transferability. This provides a much cooler and more peaceful environment for your child’s sleep.

The hollow columns also help in releasing pressure from areas such as the shoulders, hip, and back. An excellent selection for your baby, but it might cost a high pocket pinch.

vii. Hypoallergenic Cot Mattress

If your baby tends to suffer from asthma or any other respiratory problems, it is crucial to look for hypoallergenic mattresses in nature. The anti-allergy capacity of these mattresses helps in preventing dust mites forming a layer in the cot. They are also provided with anti-bacterial technology that helps in fighting any kind of germ infestation. This makes the entire sleeping procedure safe and comfortable.

2. Size

The size is a very important factor, and it matters a lot. Though most of the mattresses come in the usual standard size, always make it a point to go for the one that fulfills your child’s specifications. Most of the time, your baby will be spending time on the cot, hence giving him the right size becomes crucial. Measure each corner well so that the mattress is neither too short nor too long for the fit.

3. Breathability 

Breathable materials help in preventing extra sweating and also allow the maintenance of the proper body temperature. Non Breathable mattresses will lock the body heat, and this might cause trouble in your child’s sleep. 

4. Waterproofing

Waterproofing is a vital aspect you need to look for in a baby cot bed mattress. Mattresses that have a water-resistant layer prevent water from penetrating deep into the core. A wet surface area is more prone to develop bacteria. That’s why a water-resistant layer will not only protect the mattress from damage. It will also ensure no building up of mold, bacteria, or fungi. 

Our Advice

This article has selected 10 best cot mattress in UK based on detailed research and customer reviews. All the specifications of each product have been discussed in detail to help you choose not less than the best for your baby.

There are various baby cot bed mattresses available to buy according to your personal preference and budget. Newborn babies need a firm surface to sleep on, while toddlers need to have a softer mattress. That’s why you should be keeping an eye on the support and breathability of a particular mattress offer.

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