Sleep Like Royalty! 👑 Experience the ultimate in comfort and support. Stay cool all night with advanced gel memory foam technology. Enjoy the perfect balance of softness and firmness with a 3-layer foam system. Perfect for all sleeping positions—side, back, or stomach. Experience effortless setup and watch your mattress expand in just 72 hours! CertiPUR-US certified materials ensure a safe and durable sleep environment. medium firmness gel-infused 5" thickness The Twin Mattress 5 inch Gel Memory Foam Mattress offers a medium-firm sleeping surface designed for optimal comfort and support. With a unique gel-infused memory foam layer, it promotes cool sleep and pressure relief, making it suitable for all types of sleepers. The mattress is CertiPUR-US certified, ensuring high-quality materials and safety standards. Its compact design allows for easy setup, expanding to full size within 72 hours.