• Knitted Cloth
• ADJUSTABLE FIRMNESS: Made of 40D (3.5lbs/c.ft.) high density gel-infused memory foam, Avenco 4 inch twin bed topper can be adjusted the firmness by reversing the inner foam and provides a evenly support and maintains air flow to reduce body heat for a cooler and more restful sleeping night.
• Back Pain Relief: Our memory foam mattress topper twin is ergonomically designed to perfectly fit the body curves, preventing morning soreness caused by the over-sagging or hard mattresses, which is an ideal cooling gel foam mattress for side/back/stomach sleepers!
• Skin-Friendly Knit Cover: Come with 4 adjustable elastic straps and mesh fabric backing to prevent sliding. Zip closure for easy removal and washing, our twin foam mattress will be suitable for college dorms, rv camper, sofa bed, etc.
• CertiPUR-US Certified: Undergone numerous pressure rebound tests, avenco mattress topper memory foam will not cause collapse even for a long-term use. The new twin size mattress topper will fully expand for 24-48 hours and dissipate the slight new foam smell.
• Buy with Confidence: All of the twin mattress toppers from Avenco will enjoy 10-Year Warranty, any question for our gel mattress topper, pls feel free to contact us.

Shipping Note: Shipping to Alaska, Hawaii, PO Boxes, and APO addresses is not available for this item

Warranty: 90 Day Woot Limited Warranty