Your Sleep Matters!

Best cot mattresses for babies & children



Last updated: 07.07.2021 9 Min.

Having a good mattress that suits your body and your needs is great and all, but what if you have a baby, toddler, or young child?

Are there specific cot mattresses you need to consider? Do baby mattresses differ? What about health & safety?

Children generally sleep better than babies, but this does not mean we should underestimate the importance of a suitable mattress.

After all, a bad baby mattress can lead to back problems further down the line and well into adulthood.

So choosing a good cot mattress is essential.

We'll guide you through some of the best cot mattresses available in the UK and help you choose one that's perfect for you and your little one.

Best Mattresses for Babies and Children
  • Overview
  • The right mattress
  • Key criteria
  • Hygiene
  • Choosing your baby's bed
  • Older children
  • Conclusion

Our top recommendations

    Eve Cot Mattress

    Eve Cot
    Price from £ 119 (149 )

    Eve Cot

    The Eve Cot is a cloud-patterned mattress designed for babies and small children under the age of 6.

    This unique cloud-patterned cot mattress features luxury foam for maximum comfort and support for your little one.

    All about the Eve Cot

    Eve Cot mattress

    The Eve Cot mattress has been designed to be used from birth up to the age of six.

    The mattress features a cloud-patterned cover that is super breathable and machine-washable at 60ºC.

    It also has a waterproof protector to protect it from any spills.

    A luxury foam layer provides full support, while high-quality individual pocket springs adapt as your baby or child wriggles and grows.

    Eve cot mattress

    20% OFF EVE COT

    Obaby Natural Coir Wool Cot Bed Mattress

    Obaby Natural Coir Wool Cot Bed Mattress
    Price from £ 116

    Obaby Natural Coir Wool Cot Bed Mattress

    The Obaby Natural Coir Wool Cot Bed Mattress is made of coconut coir bonded with latex and wrapped in lamb's wool.

    This organic coir, latex, and lamb's wool mattress offers an anti-allergy sleeping surface for your little one.




    All about the Obaby Natural Coir Wool Cot Bed Mattress

    Obaby Natural Coir Wool Cot Bed Mattress

    The Obaby Natural Coir Wool Cot Bed Mattress is an organic mattress that features coconut coir bonded with latex, wrapped in lamb's wool.

    The mattress provides a natural springy feeling while being resilient and durable.

    Lamb's wool is an anti-dust mite material that prevents allergies and helps regulate body temperature. 

    The mattress also has a bamboo soft-touch removable cover.

    The mattress is available in the 140 x 70 cm size, perfect cot beds, and comes with a 5-year guarantee

    Obaby Natural Coir Wool Cot Bed Mattress


    Safe Nights Essentials Cot Mattress

    Silentnight Safe Nights Essentials Cot Mattress
    Price from £ 89

    Silentnight Safe Nights Essentials Cot Mattress

    The Silentnight Safe Nights Essentials Cot Mattress is a budget-friendly firm foam mattress that's guaranteed to be chemical-free.

    With a foam-free core that's fully recyclable, this mattress is safe and better for babies.

    All about the Silentnight Safe Nights Essentials Cot Mattress

    Silentnight Safe Nights Essentials Cot Mattress

    The Silentnight Safe Nights Essentials Cot Mattress is available in the 70 x 140 cm cot bed or toddler bed size.

    This is a flat and firm foam mattress that allows for comfort, support, and pressure relief.

    It features a soft-knit cover that's removable and washable.

    The mattress is hypoallergenic and guaranteed to be free from chemicals and odours. 

    Silentnight Safe Nights Essential Cot Mattress


    Tutti Bambini Sprung Cot Bed Mattress

    Tutti Bambini Sprung Cot Bed Mattress
    Price from £ 62

    Tutti Bambini Sprung Cot Bed Mattress

    The Tutti Bambini Sprung Cot Bed Mattress is a hypoallergenic mattress with supportive coil springs.

    A 70 x 140 cm cot bed mattress with breathable Just Tec fabric.

    All about the Tutti Bambini Sprung Cot Bed Mattress

    Tutti Bambini Sprung Cot Bed Mattress

    The Tutti Bambini Spring Cot Bed Mattress is a 70 x 140 cm mattress.

    It features supportive coil springs for comfort & spinal alignment as well as air-permeable, quilted fabric for superior comfort and breathability.

    The mattress is hypoallergenic with British Safety Standards compliant materials.

    It also features a removable cover that's washable at 60℃.

    Tutti Bambini Sprung Cot Bed Mattress


    The Little Green Sheep Natural Twist Cot Bed Mattress

    Little Green Sheep Natural Twist Cot Bed Mattress
    Price from £ 219

    Little Green Sheep Natural Twist Cot Bed Mattress

    The Little Green Sheep Natural Twist Cot Bed Mattress is a dual-sided, 100% natural mattress.

    A natural mattress made from breathable cotton, supportive coconut coir, natural latex and hypoallergenic wool.

    All about the Little Green Sheep Natural Twist Cot Bed Mattress

    The Little Green Sheep Natural Twist Cot Bed Mattress

    The Little Green Sheep Natural Twist Cot Bed Mattress is a 70 x 140 cm mattress designed for your little ones.

    There is also a 60 x 120 cm size option.

    It's a dual-sided mattress.

    One side is firm, recommended for babies up to 12 months. The other is the more comfortable natural latex side.

    The mattress is 100% natural, made from breathable cotton, supportive coconut coir, natural latex, and hypoallergenic wool.

    It's suitable for use from birth up to 5 years of age.​​​​​​

    The Little Green Sheep Natural Twist Cot Bed Mattress


    Mamas & Papas Baby Premium Pocket Spring Mattress

    Mamas & Papas Baby Premium Pocket Spring Mattress
    Price from £ 159

    Mamas & Papas Baby Premium Pocket Spring Mattress

    The Mamas & Papas Baby Premium Pocket Spring Mattress features a dual-core pocket spring design, making it suitable for babies and toddlers.

    This mattress offers two-sided support and features a unique flip-and-rotate design for durability.

    All about the Mamas & Papas Baby Premium Pocket Spring Mattress

    Mamas & Papas Baby Premium Pocket Spring Mattress

    The Mamas & Papas Baby Premium Pocket Spring Mattress is a 70 x 140 cm cot mattress with a dual-core design.

    One side is perfectly suited for infants, while the other is more suitable for toddlers.

    The temperature-regulating design features perspiration control and keeps your baby cool and comfortable.

    The mattress can be flipped and rotated for longevity and has crush-resistant walls.

    The mattress cover is removable and washable

    Mamas & Papas Baby Premium Pocket Spring Mattress


    Choosing the right mattress for young children

    Children under the age of 6 generally require a baby or cot mattress.

    Like adults, children need quality bedding and a quality mattress that meets their needs.

    A good mattress for young children will provide excellent support by adapting to their body without creating painful or uncomfortable pressure points.

    Importantly, the mattress should support the spine and provide for healthy spinal alignment.

    This is essential for children in the growth period.

    Children will rarely complain about back pain at a young age, but a low-quality mattress may lead to back problems years down the line and only emerge in adulthood.

    A good mattress will also promote quality sleep, which is key to your child's physical and mental recovery.

    This will allow for a better capacity for concentration, memorisation, and learning during the day.

    Criteria to consider

    Finding that perfect fit for your baby or young child shouldn't be too difficult, but there are a few criteria you need to consider.

    These are important to ensure that the cot mattress you choose is the best to aid your little one's development.


    Of course, choosing the right mattress size for babies and children is important.

    Your child will grow very quickly in the first few years, and you certainly don't want to have to buy a new mattress every year.

    We would recommend cot mattresses that fit the 60 x 120 cm or the 70 x 140 cm dimensions.

    These are the most common dimensions that are small enough to be suitable for a young child and large enough to accommodate a growing child.

    As your child grows, you can switch over to a 90 x 190 cm single mattress, which you can keep well until adulthood.


    Baby mattresses can be made from various materials, including pocket springs, coir, natural latex, or memory foam.

    Natural and organic materials are great as they tend to be anti-allergy and don't contain harmful chemicals, but even certified memory foam mattresses can be free from toxins.

    The material you choose is also largely influenced by your budget, as natural and organic mattresses are often much more expensive.


    Firmness is an essential aspect to consider when choosing a mattress for your baby or toddler.

    You need a mattress that offers good support but is also very comfortable.

    You're better off choosing a medium-firm to firm mattress, which will adequately support spinal alignment and aid healthy bone development.

    Generally, newborns require firm mattresses.

    Toddlers will be more comfortable on medium-firm mattresses.



    Breathability is vital.

    Not only does good airflow help to keep your little one cool and comfortable for a better night's sleep, but it also helps in terms of hygiene and prevents the formation of mould.

    The mattress cover should also be breathable and allow for good air circulation.

    We would also recommend choosing slatted frames as these can aid in keeping the cot mattress well-ventilated.


    Health and safety may be important for adults, but this is even more so with cot mattresses.

    We recommend that you favour anti-allergenic materials free from harmful substances, such as dichlorobenzene, nitrosamines, or formaldehyde.

    This will allow for easier breathing and avoid the risk of allergies.

    Also, look out for mattresses that have been certified by external testing institutions like OEKO-TEX.

    For example, mattresses that carry the OEKO-TEX-Standard-100 certification are guaranteed to be free from harmful substances, toxins, and dangerous chemicals.


    Children are very vulnerable to allergies.

    Sme mattresses offer anti-mite, anti-bacterial, or hypoallergenic technologies.

    Of course, breathability and certifications that guarantee the mattress is free from harmful chemicals are also important.

    It's also a good idea to make sure you invest in a waterproof mattress or a mattress with a washable cover.

    You could even consider a waterproof mattress protector.

    This will help protect the mattress from moisture, spills, or stains and elongate the mattress's lifespan.

    We've given some recommendations of our favourite cot mattress protectors below.

    Choosing your baby's bed

    While choosing the right mattress for your baby or young child is important, you also need to consider the bed frame.

    This will significantly affect your choice of mattress as well.

    There are no right or wrong choices, and what you end up choosing largely depends on your budget and personal preference.

    Moses baskets

    Moses baskets, cribs, or co-sleepers have been specifically designed for newborn babies.

    These take up much less space than a cot and are great if you have a smaller room and want your child sharing the room with you - which is recommended for the first six months.

    Moses baskets can also be carried around from room to room, which can be convenient.

    But, you will have to invest in a crib mattress and then re-invest in a cot mattress as your baby grows.


    Newborns don't have to sleep in a Moses basket or crib and can be quite comfortable in a cot as well.

    This is handy as you can buy a cot and cot bed mattress once and then won't have to re-buy a new mattress or frame as your child grows.

    Baby mattresses can be expensive if you end up having to repurchase them again and again as your child grows, so it's a much cheaper and more sustainable option to invest wisely the first time around.

    We'd also recommend a cot with slatted frames, as this will help with airflow and keep your baby's cot mattress well-ventilated.

    Older children

    A child can comfortably sleep on an adult mattress from the age of 5 or 6, but it is essential that this mattress is of good quality and can adapt to your child's body as it grows over the next ten or so years.

    We've included some of our favourite adult mattresses below, which can be good choices for your growing child.

    These are all high-quality mattresses that allow for good airflow, provide adequate support, and are very comfortable.

    They're also all available in the 90 x 190 cm single size, which is a good size for most children and teenagers.


    In general, you need to consider the health, safety, and development of your child.

    The ideal cot mattress will offer comfort and support while aiding spinal alignment and healthy bone development.

    You'll be good to go with any of our recommended mattresses.

    Don't forget that bed-in-a-box mattress brands, like Eve, all offer risk-free trial periods.

    Frequently asked questions

    • What size are baby cot mattresses?

      Cot mattresses are available in a number of different dimensions. 

      The most common sizes in the UK are:

      • 120x60cm
      • 140x70cm

      You'll also find smaller mattresses available that will fit wicker baskets and prams and can be used as travel cot mattresses.

    • Can I buy cot mattresses on Amazon?

      Yes, Amazon is one of the best places to buy cot mattresses.

      Many of the bed-in-a-box mattress brands stick purely to adult mattresses.

      While there are some exceptions, like Eve, you'll find a much better selection of baby mattresses on Amazon.

      Many of the brands we recommend can be purchased online via Amazon.

    • Do I need special bedding for my cot mattress?

      Yes, you'll need to invest in bedding for your baby or young child. 

      You'll need to consider mattress protectors, sheets, duvets, and even pillows and pillow covers.

      Most large-scale baby stores sell these, both at retailers and online.


    My mum calls me "bear" because I like to sleep so much. I never knew that, one day, that would be a very useful skill. Can you tell that I've found my calling? 

    Try these

    We can highly recommend these best-selling mattresses.

    Nectar Memory Foam Mattress
    Nectar Nectar memory foam mattress
    Nectar Price from £ 466 (£ 769 )

    Get the Nectar mattress, a luxurious memory foam mattress that comes with a 365-day trial period. Offer includes free gifts - pillows, mattress protector, sheet set, and a duvet!

    Simba Hybrid
    Simba Hybrid Simba Hybrid Mattress
    Simba Price from £ 421 (£ 649 )

    Get 35% off the Simba Hybrid mattress, a high-quality pocket sprung memory foam mattress.

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