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Sleep Guide

Mattresses For Children

Updated April 2026 · 4 Min Read · Written By The CheapMattresses Team

Mattresses For Children

Children spend up to half their day in bed, making the right mattress important for development, learning and allergy control. Here is what to look for.

Why It Matters

Children spend more time in bed than adults. Young children are asleep for around half the day, and tweens for around 40%. The mattress they sleep on affects their physical development, concentration, and general wellbeing.

Development And Growth

Children grow continuously until adolescence. The growth hormone is released during sleep, so uninterrupted rest is important for maintaining a healthy growth rate.

During this period, the spine needs proper support. A mattress that sags or fails to keep the back aligned can create problems that only become apparent later in life. When choosing a mattress for a child, allow room for growth so you are not replacing it every year or two.

For help understanding which sizes are available, our UK mattress sizes guide covers everything from cot beds to small singles.

Sleep And Learning

Research has shown that sleep plays a direct role in how the brain processes information learned during the day. Studies from the United States found that students who slept well after studying performed better in exams than those who stayed up all night revising.

For children, this connection between sleep and learning is even more pronounced. Adequate sleep improves:

  • Concentration and focus during school hours
  • Memory retention for new information
  • Behaviour and emotional regulation
  • Physical coordination and reaction times

Allergies And Hygiene

Asthma, eczema, and other allergic conditions are common in children. Dust mites and their droppings are a major trigger, and mattresses provide an ideal environment for them to thrive.

To reduce the risk:

  • Always buy a new mattress for your child rather than accepting a second-hand one
  • Consider hypoallergenic options such as memory foam or latex mattresses, which are less hospitable to dust mites
  • Air the mattress daily by pulling back the covers for at least 30 minutes before making the bed
  • Vacuum the mattress regularly to remove accumulated dust
  • Wash bedding at 60°C on a regular basis to kill dust mites

Practical Tips

  • Let your child test the mattress in their normal sleeping position, just as you would when choosing your own
  • Buy a waterproof mattress protector to guard against spills and accidents
  • Check whether the mattress meets current fire-retardancy standards (BS7177)
  • Choose a mattress that is comfortable but supportive for the back and neck

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