Kids Mattresses | Safe & Comfortable Children's Beds UK | Mattress365 -

Kids Mattresses – Comfortable Support for Growing Children

Discover our range of Kids Mattresses, designed to provide comfortable, supportive and restful sleep for growing children. Choosing the right mattress is important as children grow, helping provide the comfort and support they need for a healthy night's sleep.

Our children's mattresses are available in a variety of constructions and comfort levels, including memory foam, spring and supportive mattress designs. Whether you're replacing an old mattress, moving your child into a bigger bed or creating a new bedroom, our range offers practical options for children and teenagers.

  • Comfortable and supportive mattresses designed for growing children
  • Small Single, Single and Small Double options available
  • Soft/Medium, Medium and Medium/Firm comfort options
  • Memory foam and spring mattress options
  • Breathable and comfortable materials available
  • Options suitable for children and teenagers
  • Designed to provide reliable support and everyday comfort
  • Available from trusted UK mattress brands

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Choosing the Right Kids Mattress

Choosing the right mattress for your child is important for creating a comfortable and supportive sleeping environment. Children are constantly growing, so their mattress should provide a suitable balance of comfort and support while giving them enough room to sleep comfortably.

When choosing a kids mattress, consider the mattress size, firmness and construction. Medium and medium-firm mattresses can provide a useful balance of comfort and support, while softer options may suit children who prefer a more cushioned sleeping surface.

It's also important to consider how quickly your child is growing. Choosing a mattress with enough length and space can help ensure it remains comfortable as they get older. Small Single and Single mattresses are popular choices for children, while Small Double mattresses can provide additional sleeping space for older children and teenagers.

Need Help Choosing a Kids Mattress?

Our expert buying guide explains kids mattress sizes, materials, comfort levels and other important considerations to help you choose the right mattress for your child.

Kids Mattress Buying Guide

Learn more about mattress sizes, materials, comfort and support to help you find the right mattress for your growing child.

Explore Our Kids Mattress Buying Guide →

Memory Foam Kids Mattresses

Memory foam mattresses provide comfortable, pressure-relieving support and can offer a cosy sleeping surface for children and teenagers.

Spring Kids Mattresses

Spring mattresses provide responsive support and a comfortable sleeping surface for growing children. They are a practical option for parents looking for traditional mattress support and durability.

Small Single Kids Mattresses

Small Single mattresses are a popular choice for children's bedrooms, offering a narrower sleeping surface than a standard Single while providing a comfortable space for growing children.

Single Kids Mattresses

Single mattresses are one of the most popular choices for children's and teenagers' bedrooms, providing plenty of sleeping space while fitting comfortably into most bedrooms.

Who Are Kids Mattresses Suitable For?

  • Young Children – Comfortable and supportive mattresses designed for growing bodies.
  • Growing Children – Choose a suitable size and comfort level to accommodate your child's changing needs.
  • Teenagers – Larger mattress options can provide additional space and comfort as children grow.
  • Children Moving to a Bigger Bed – Ideal when transitioning from a cot or smaller sleeping arrangement.
  • Children's Bedrooms – Available in popular sizes designed to fit common children's bed frames.
  • Guest Bedrooms – Suitable children's mattress options can also be useful for rooms used by younger guests.
  • Parents Looking for Supportive Comfort – A quality mattress can provide a comfortable and supportive sleeping surface for everyday use.

What Firmness Is Best for a Kids Mattress?

Children need a balance of comfort and support as they grow. Our kids mattress range includes different firmness levels, including soft/medium, medium and medium/firm options, allowing parents to choose a mattress that suits their child's comfort preferences.

A medium or medium-firm mattress can provide a good balance of stability and comfort, while softer options can provide a more cushioned feel. The best choice depends on the child's age, sleeping preferences and the mattress construction.

Why Choose a Kids Mattress?

  • Growing Body Support – Designed to provide comfortable support as children grow.
  • Comfortable Sleep – Quality mattress materials help create a comfortable sleeping environment.
  • Choice of Firmness – Choose from soft/medium, medium and medium/firm options.
  • Choice of Sizes – Small Single, Single and Small Double options provide flexibility as your child grows.
  • Durable Construction – Quality mattress designs are made for everyday use.

Why Buy Your Kids Mattress From Mattresses365?

We offer a carefully selected range of kids mattresses designed to provide comfortable and supportive sleep for children and teenagers.

✔ Mattresses designed for growing children

✔ Small Single, Single and Small Double options

✔ Soft/Medium, Medium and Medium/Firm choices

✔ Memory foam and spring mattress options

✔ Comfortable and supportive constructions

✔ Trusted UK mattress brands

✔ Competitive prices

✔ Next Day Delivery available on selected models

✔ Manufacturer guarantees included

✔ Free delivery within mainland UK on eligible products

✔ Expert mattress advice

Kids Mattresses FAQs

What is the best mattress for a child?

The best kids mattress should provide a comfortable balance of support and comfort while offering enough space for your child to sleep comfortably as they grow. Medium and medium-firm options can provide a good balance for many children.

What firmness is best for children?

Our kids mattress range includes soft/medium, medium and medium/firm options. A medium or medium-firm mattress can provide a balance of comfort and support, but the ideal firmness depends on your child's preferences and the mattress construction.

What size mattress is best for a child?

Small Single and Single mattresses are popular choices for children. Small Double mattresses can provide additional sleeping space and may be particularly useful for older children and teenagers.

Are Small Single mattresses good for children?

Yes. Small Single mattresses are narrower than standard Single mattresses, making them a practical option for children's bedrooms where space is limited while still providing a comfortable sleeping surface.

Are Single mattresses suitable for children?

Yes. Single mattresses are one of the most popular choices for children's and teenagers' bedrooms. They provide a good amount of sleeping space and can accommodate a child as they grow.

Are memory foam mattresses good for children?

Memory foam can provide comfortable, pressure-relieving support and is available in kids mattress designs. Always check the specifications of the individual mattress to ensure it is suitable for your child's bed and requirements.

How often should you replace a child's mattress?

Children's mattresses can need replacing more frequently than adult mattresses as children grow and their sleeping requirements change. Mattresses365 recommends considering a replacement approximately every three years for children aged 3–10 and every five years for children aged 10–16, depending on condition and growth.

How long should a kids mattress be?

A mattress should provide enough length for your child to sleep comfortably as they grow. As a general guide, choosing a mattress at least 10cm longer than your child's height can provide additional room for growth.

Are kids mattresses breathable?

Many children's mattresses use breathable materials designed to create a comfortable sleeping environment. Check the individual mattress specifications for details about its materials and breathability.

Are kids mattresses hypoallergenic?

Some kids mattresses are made using hypoallergenic materials and can be suitable for children who require a more allergy-conscious sleeping environment. Check the individual product specifications for the exact features of each mattress.

Are kids mattresses safe?

Safety should always be considered when choosing a child's mattress. Check that the mattress is suitable for the child's bed frame and age, and review the manufacturer's product specifications and safety information before purchase.

What mattress should I buy for a growing child?

Consider a mattress size that gives your child enough room to grow, together with a suitable level of comfort and support. Small Single and Single mattresses are popular choices, while a Small Double can provide additional space for older children and teenagers.