【Premium Material】The pillow top mattress topper king is made of high-density weaved brushed microfiber fabric, which is breathable and skin-friendly, providing superior softness and comfort. The 3D snow down alternative filling keeps you from the risk of skin sensitivity, providing a more relaxed healthy sleep and a luxury hotel sleep experience at home. A simple and elegant design style is a wonderful decoration for your bedroom. 【Ultra Thick & Breathable】Our cooling mattress pad with thickened down alternative filling offers super elasticity and support, is fluffy and breathable, contributing to back pain relief and stress reduction. The cooling mattress cover filling with hollow fibers can increase air circulation and breathability, and carry away extra heat and perspiration. Providing a quiet and silent sleep for you，cloud-like comfort that will make you sleep like a baby.