YANRUI 2 Inch Twin Size Memory Foam Mattress Topper, Extra Firm High-Density Bed Topper Pain-Relief, Ergonomic Gel-Infused Enhanced Cooling Pad Skin-Friendly Removable Cover, CertiPUR-US Certified

ERGONOMIC DESIGN & PAIN-PAIN RELIEF - Utilizing thousands of testing hours and reviewing the toppers designed to balance softness and support. Alleviate soreness associated with the old mattress. And it can distribute weight evenly to align the spine. COOLING & BREATHABLE EXPERIENCE - This cooling gel-infused memory foam mattress topper is perfect for people who are sweaty or feel hot while sleeping. And with its special ventilated design, it promotes air circulation in the mattress. 2-LAYER DESIGN & OPTIONAL FIRMNESS - If you don't know what firmness is right for you, choose this! Featuring the double-layer foam design, the top side is medium-firm, and the bottom side is firm, giving you the "just right" firmness. MACHINE WASHABLE & ANTI-SLIP BOTTOM - The cover adopts skin-friendly knitted fabric, which is light and anti-static. It has adjustable elastic straps and an anti-slip bottom to prevent sliding and a premium zipper for easy removal and machine washing. CertiPUR-US & OEKO CERTIFIED ENSURE SAFETY - CertiPUR-US certified foam and OEKO-TEX cover to meet specific standards. Simply allow the compressed gel memory foam mattress topper to fully expand for 24 hours and dissipate the slight new foam smell.