The mattress combines support and comfort, provides excellent whole-body support, can adapt to the curve of the human body, stretches flexibly, protects the spine and maintains a natural and straight posture, allowing the body muscles to fully relax and relieve the human body stress, reduce the number of turning over during sleep and create a sleeping environment. Compatible with most bed frames, such as foundations, slatted platforms, box-spring beds. CASAINC Mattress 12-in Twin Hybrid Memory Foam/Coil Blend Mattress in a Box in Gray | TMM-WF-SN-M001-12-Q