The 2.75 in. Smarair Air Fiber Mattress Topper provides the latest Polyethylene Air Fiber interwoven workmanship technology to create super breathable and high-resilience mattress for enhancing your sleep. It is composed of an outer cover and three air fiber inner cores. The firm supportive feel of Smarair Mattress Topper helps maintain the body's natural posture better than on a soft mattress like memory foam. It is designed to keep you back firmly supported through out the night, properly align spine and relieve back and joint pain. Through its unique interwoven design, the mattress helps you roll over easily, distribute weight evenly and allows airflow to help keep you in such a deeper restful sleep that you wake up with more energized and refreshed feelings. The innovative design also allows the topper stay cool and well-ventilated. Smarair Mattress Topper is easy to clean. This may be an ideal product for those who'd like to clean their mattresses topper freely but have previously stopped because of the limitations of traditional mattresses. Hypoallergenic,Antimicrobial,and Mite+Bed Bug Resistant. You can breathe better, rest more comfortably, and wake up more energetic. Let our excellent mattress support you to create more qualified and satisfied sleep experience. Smart choice for a restful sleep brings a joyful life.