A supportive mattress helps keep a child’s spine aligned throughout the night. Look for a stable support core that prevents excessive sinking while still providing enough cushioning for comfort.

Kids generally need a mattress that feels supportive without being uncomfortably hard. Depending on your child’s body type, a balanced medium-firm feel can provide cozy cushioning while maintaining a stable sleep surface

Material quality can be especially important when shopping for a child’s mattress. Look for recognized third-party certifications and clear information about the materials used inside the bed. For example, the best mattresses for kids are fiberglass-free.

Kids can sleep hot, so breathable and heat-dissipating materials can help create a more comfortable sleep environment. Look for breathable covers, cooling foams, or hybrid construction that allows air to move through the mattress.

Mattress height matters when furnishing kids’ rooms. A standard kids mattress works well for most traditional bed frames, while bunk beds and trundle beds may require a lower-profile mattress.