This Sealy Dreamlife 14” Hybrid Twin XL Size Mattress is designed to help you stay cozy all night (or all day) and wake up feeling refreshed. And it’s made by Sealy, a leader in quality sleep products for over 140 years. Advanced SealyComfort gel memory foam adapts and responds to every part of your body to provide pressure relief and a personalized sleep experience, while SealySupport Transition Foam enhances the overall comfort of the mattress and adds long-lasting durability. SealyResponsive Encased Coils move independently for targeted support across the mattress as advanced edge coils provide increased airflow, support and durability. A soft, stretchable SealyCool Stretch Knit Cover helps keep you cool and comfortable through the night. The cover is also removeable and machine washable for easy care. Sealy Dreamlife is dedicated to promoting a healthier sleep environment. CertiPUR-US ensures the mattress foam meets strict standards for content, emissions and durability, and Surface-Guard Technology kills bacteria on the surface of the mattress, protecting it from common allergens. This mattress was designed and built in the USA and includes a 10-year limited warranty, so you can rest easy with comfort you can count on.