Whatever you call it, Japanese bed, futon, Japanese sleeping mat or Japanese mattress, with a wide range of its function and style, Japanese people tend to choose these pads as these helps them to keep good sleeping posture, especially when combined with tatami mat flooring.

Soft Thin Mattress Topper Mattress Pad Pillow Top Foldable Portable Japanese Tatami Futon Mattress Floor Mattress For Single Double Sleeping Pad Camping Mattress-Jade green-80x190cm31x75inch