The Velfont TERMO-regulator mattress topper combines a 100% natural cotton filling with 100% cotton thermo-regulatory fabric. Applies the most advanced technology developed by NASA with the cotton fabric, obtaining an exclusive and unique product in the market. This mattress cover increases comfort by relieving pressure on the points of contact with our body and achieving a better rest thanks to its 100% natural cotton padding. All Velfont mattress covers favor the circulation of air inside, remove the humidity that can accumulate and allow the correct perspiration. No refunds or exchanges allowed.