Subrtex 4 Inch King Mattress Topper, Gel Memory Foam Bed Topper with Removable Cover, Pressure Relieving for Old Mattress Upgrade, CertiPUR-US Certified

Refresh Your Existing Mattress:
Give a firm, aging, or uncomfortable mattress a comfort upgrade without replacing the entire bed. The responsive memory foam adds an extra cushioning layer while maintaining balanced comfort and support for a more comfortable sleep surface.

Body-Conforming Pressure Relief:
High-density memory foam gently conforms to your body's natural curves and helps distribute weight evenly, cushioning pressure points around the shoulders, hips, and back for enhanced comfort throughout the night.

Ventilated Gel-Infused Memory Foam:
The ventilated foam structure promotes airflow throughout the topper, while responsive gel-infused memory foam adapts to your body for consistent comfort and support across the sleep surface.

Removable Bamboo Rayon Blend Cover:
Unlike exposed foam toppers, this mattress topper comes with a removable cover made from 90% polyester and 10% rayon made from bamboo for a comfortable, breathable sleep surface and easier everyday care. The cover is machine washable for convenient cleaning.

Adjustable Straps for a Secure Fit:
Designed with adjustable straps that help secure the topper to your existing mattress and reduce shifting during the night. The flexible design makes it easy to pair the topper with a variety of mattress setups.

CertiPUR-US Certified Foam:
Made with CertiPUR-US certified memory foam that meets established standards for content, emissions, and durability, giving you added confidence in the quality and performance of your mattress topper.

Compressed Packaging & Easy Setup:
For convenient delivery, the mattress topper arrives compressed and rolled in a box. After unpacking, place it flat in a well-ventilated area and allow 24–48 hours to fully expand to its intended size and shape. Expansion time may vary depending on room temperature and conditions.