QUALITY MEMORY FOAM MATTRESS: Firm Mattress in a Box with luxurious Tencel removable cover, softer and cooler, fiberglass-free, premier cooling gel/green tea memory foam, hug your shape to soothe you to sleep. UPDATED TENCEL FIBERGLASS-FREE COVER: The green tea gel mattress with a breathable and soft jacquard Tencel cover, is smooth and comfortable, softer and cooler, to allow you to also enjoy a safe deep sleep in summer. Zipper near the back, machine washable. Zipper near the back, machine washable.The memory foam and fabrics have been independently safety evaluated to comply. This foam mattress will give you and your family a great night’s sleep.PRESSURE-RELIEVING & STRONG SUPPORT: The firm mattress for back pain conforms to the body, with breathable green tea and cooling gel memory foam to control odors, and you awake refreshed. This high-grade foam of the bottom provides spinal support and keeps the sleeper's muscles relaxed.