Kid’s mattresses are typically twin or full-size beds designed with features tailored to growing children, such as waterproof covers, lower heights for safety, or hypoallergenic materials. These mattresses prioritize durability and support for developing bodies while often incorporating fun themes or colors. A good kid’s mattress balances firmness and comfort to promote healthy sleep posture, making it a crucial part of a child’s bedtime routine. They're ideal for toddlers transitioning from cribs, elementary-aged children, and even early teens.