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Kids’ mattress buying guide

Last updated: February 2024

Getting a good night's sleep is vital for children's physical and cognitive development, as well as their general mental well-being. Kids spend a lot of time in their bed; sleeping, playing and relaxing. Therefore, choosing the right mattress for your child can be one of the most important decisions to make for their day-to-day comfort and happiness. If you're wondering what your options for kids' mattresses are and how to choose the best mattress for a child, this guide will cover everything you need to make a great choice.

How to choose a mattress for kids

Children have different sleep needs and considerations than adults, which is why it is worth finding out as much about mattress options as possible. However, it's important to remember that kids are all unique and the best way to choose the right mattress for your kid is to ask them about their sleep issues.

What’s the best mattress for my child’s age?

Every stage of development brings new challenges so age is one of the most important factors to consider when choosing a kids' mattress.

baby on a mattress


Although we currently don’t sell cots, we do have a range of cot mattresses. They're all hypoallergenic and feature handy wipe-clean, water repellent covers. Handy for night-time accidents.


Our toddler mattress range also have handy features such as being water repellent and hypoallergenic to keep your toddler comfortable and safe during the night. All of our mattresses for toddlers are comfortable with both cot beds and toddler beds, which we would recommend using for children from 12 months up to 4 years old.

Read our toddler bed guide to find out more about the benefits of toddler beds.

Older kids

For older kids, the transition to a larger kid's bed starts from around the age of 5. However, as every child is different, parents will often know instinctively when the time is right for their little one to make the move.

Give your child the perfect night's sleep, shop our full range of kids mattresses

We have both single mattresses and Euro single mattresses that are suitable for older children. A standard European single bed, often known as a twin bed, is 90cm wide and 200cm long. (3ft wide and 6ft 6ins long). This means twin beds and mattresses are a little longer than their UK single counterparts, but with the same width. Single kids' mattresses are a great choice as they accommodate growing bodies without taking up too much space in the bedroom.

Older child on bed

What mattress firmness is best for children?

If your child complains about a sore neck or back or a general discomfort at night, then it's likely that they don't have the right mattress firmness. Generally, the best firmness for kids is a medium-firm, especially if they move around a lot so all of their pressure points are supported.

However, this can differ from person to person. So, if your child has a preferred sleeping position, then take a look at our personal comfort guide for more advice on which mattress firmness would suit them.

The best mattresses for kids

Mattress filling typeProsCons
Traditional springInterconnected internal springs offer edge-to-edge support for restless sleepersCan become creaky as the mattress ages
Pocket springIndividual springs wrapped in a pocket of fabric for independent support where you need it mostNo luxurious extra fillings
Memory foamSumptuous sinking-in feeling with great supportCan be a little too warm for some sleepers
GelCooling layer of gel for temperature regulationCooling effect can wear off after a long time
LatexHypoallergenic material that offers a high level of support as it moulds to the sleeper's shapeCan be heavy and difficult to turn
NaturalNatural fibres such as cotton, wool, mohair and silk are sustainably sourced and offer antibacterial and temperature-regulating propertiesUsually the most expensive
Bunk bed top mattress

Best mattress for bunk beds

When choosing a mattress for an elevated kids’ bed like a bunk bed, mid sleeper or high sleeper bed, the mattress should be no deeper than 15cm. This is to ensure that the mattress doesn’t sit above the top of the bed frame and potentially be a hazard for falling out.

The best allergy mattresses for kids

If your little one suffers from asthma, sensitive skin or other allergies, our hypoallergenic mattresses are a good choice. These contain no common allergens and will help keep your child protected from unwanted symptoms. Alternatively, a hypoallergenic mattress protector will help keep your little one shielded from any allergens on their mattress.

Child with dog

Common sleep complaints

Two kids sleeping


Some children can get hot during the night, whether that be due to warm weather or just general fidgeting and/or tossing and turning while they dream big! If your little one sometimes overheats in bed, we have single mattresses suitable for kids from around 5 years+ that are temperature regulating and cooling. Look for gel mattresses with cooling gel inside, plus natural mattresses stuffed with temperature-regulating fibres such as cotton and wool.

Upside down girl sleeping


Talking of fidgeting, some wriggly children can wake themselves up because of it! Choosing a kids’ mattress with good shock absorption and bodyweight distribution will help minimise this. Pocket sprung mattresses are particularly good at providing independent support from each spring, as well as memory foam mattresses for support and comfort where they need it most, which will recover and spring back, no matter which way they turn.

Child sleeping on their front

Bed wetting

Night-time accidents happen to almost all children, so it's best to be prepared. If your child wets the bed, choosing a water-repellent kids' mattress like one of our Little Big Dreams mattresses will help to protect the mattress so that it lasts longer, and keep your child clean and safe with the removable cover that can be cleaned often.

Kids mattress protector

How long does a children's mattress last?

Typically, a mattress will last 8-10 years before it needs replacing. This means that a high-quality mattress will last your child into their teenage years or early adulthood, or can be passed between siblings after a few years.

For advice on how to increase the lifespan of your child's mattress take a look at our tips on how to clean your mattress.

For more helpful information on beds and mattresses, check out our full guides section here.

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