This extra thick white mattress topper adds a plush layer of softness and instantly improves the comfort of your bed. Breathable microfiber premium microfiber filling combined with wave seams promotes better air circulation, reduces heat build-up and ensures a fresher sleeping environment. Designed for year-round use, this extra thick mattress topper will keep you cool and dry in summer while providing cozy warmth during the colder months. Secure fit wide elastic corner ties hold the topper firmly in place for a smooth, non-slip lying surface. Also ideal as a topper for sofa beds, guest beds and other sleeping facilities. Easy care machine washable for lasting freshness. Easy to place between mattress and fitted sheet, and its lightweight, foldable design makes storage quick and space-saving.