Dyonery Extra Firm Mattress Topper: 4 Inch, High Density Bed Topper, Extra Support for Pain Relief, Breathable Washable Cover with Anti-Slip Straps.

his ultra hard mattress cushion adopts an ergonomic five zone design, which evenly disperses weight and provides precise support from head to toe, truly relieving stress and optimizing body posture. Whether you lie on your back, side or prone, this mattress cushion can fit your pressure points, ensuring a deeper and more relaxing sleep experience. Gel memory cotton: gel is injected into the memory cotton and has a breathable design, which is designed to lock in and dissipate heat, thus improving your sleep experience. The memory foam mattress cushion provides adaptive comfort and support. Double anti slip design: The anti slip bottom and adjustable elastic band design prevent the mattress cover from sliding. Whether you lie on your back or on your side, this foam mattress can fit your body curve and bring you a comfortable sleep experience. Skin friendly material: This mattress cover is made of skin friendly and breathable polyester fiber, and has passed the CertiPUR-US standard certification test to prevent pilling and static electricity. Humanized design is the ideal choice for every family. Detachable and washable mattress cover: This mattress cover features a zipper design for easy disassembly and cleaning. Make it easy for you to maintain and worry free to keep the mattress clean. Packaging and distribution: The foam mattress cushion is delivered in a compressed state, and it takes 24-48 hours to fully expand. Suitable for dormitories, camping tents, beds, and RVs.