Memory Foam Upgraded Sleep Experience: Improve comfort & support for sleep without spending a fortune on a new bed. Renew an old mattress, transform a hard mattress, or enhance a new mattress with this queen memory foam mattress topper. All-Night Comfort: This high-density memory foam mattress topper queen conforms to your body and provides real support for shoulders, back, waist, hips, and legs. It's suitable for all sleeping positions and brings ultimate relaxation. Breathable & Cool: This queen bed topper is breathable and has airflow channels to carry excess heat away, helping you have a cool night. It's also infused with cooling gel for an enhanced cooling effect. Certified Mattress Topper: The queen foam mattress topper has been tested to meet rigorous CertiPUR-US standards for content, emissions, and durability. It's safe and skin-friendly, so the whole family can use it with confidence. Easy to Carry & Unroll: The foam mattress topper is convenient for use around the home on sofa beds, air mattresses, and floors. The topper is delivered to you compressed and needs 24–48 hours to fully expand (may take longer in low temperatures).