Multifunction Tri Folding Mattress - The S SECRETLAND Folding Mattress combines the convenience of a moveable bed with the comfort of a memory foam mattress. Not only can it be freely changed between the sofa and the bed, it also allows you to rest comfortably wherever you go. Perfect Design - S SECRETLAND 6" Memory Foam Folding Mattress is designed with 2 layers: 2" Gel Memory Foam, which conforms to your body perfectly and absorbs pressure from your body; 4" High Density Support Foam provides perfect support for your body. Strong Support - S SECRETLAND Tri-Folding Mattresses feature a higher density of support foam than regular folding mattresses, providing greater firmness. The durability of the folding mattress has also been greatly improved, and it can undergo thousands of pressure tests in the laboratory without collapsing.