The Essentials Memory Foam Mattress provides a medium feel using a combination of high-density foams with Environmentally friendly eco support foam and traditional memory foam for a superior sleep experience and a long lifespan. The mattress features a removable, machine washable cover. Top layer of memory foam provides pressure relief while high-density base foam provides great support. Hypo-allergenic cover reduces symptoms of asthma and allergies. Zip-off machine washable stretch knit cover makes it easy to clean. The mattress is supplied vacuum packed and rolled so once unpacked should be laid flat for 4-6 hours prior to use to allow it to expand to its full size. Please note this product dispatches within 1-2 working days. Aspire Essentials Memory Foam Mattress in White Size: King