Ergonomic fivelayer structure for balanced support. The design provides moderate hardness and softness, is not easy to collapse, and offers elastic support to fit different parts of the body and sleeping posture for a comfortable sleep. The tatami mattress is intended to relieve back pain and stiffness caused by sleep, helping you sleep more naturally with the Japanese futon. Quilting process. Threedimensional quilting with fine stitches effectively fixes the fillings, preventing runny cotton and board shifts. The edging is delicately finished to increase edge wear resistance, making the mattress more durable and less prone to breakage. Wide range of applications. This mattress is an ideal choice for guest rooms, dormitories, and travel beds. It can be used as a camping mattress, floor mat, living room futon, floor recliner, or guest bed. Filling and performance. Soy fiber cotton hard cotton layer moistureproof cotton layer, with a scientifically designed thickness, provides strong resilience and effective support. The moderate thickness supports the body's center of gravity and helps prevent fatigue after long sleep. The Japanese futon also offers good breathability and moisture absorption.