💗 STAY REFRESHING AND DRY NIGHT - This 6" twin mattress features adaptable gel-filled memory foam that helps absorb heat and carry it away from the body, enhancing the memory foam's comfort level and ability to regulate temperature. Maximize a deep and refreshing sleep experience so your child doesn't get stuck in the heat of the night. 💗 COMFORTABLE SLEEP - A medium-firm mattress is the best choice for any type of child sleeper, and it fits most sleep positions because it has enough pressure relief to curve around your child's body and is designed to align the spine, which is critical to your child's development. So both you and your child can have a pain-free night and a stiffness-free morning. 💗 SAFETY FIRST - You can sleep easy on this 6" twin mattress because all of our bedding is CertiPUR-US certified for performance and safety. The fiberglass-free FR inner cover and graphene fabric cover provide a healthy and naturally skin-friendly sleeping surface for you and your family.