3" Deluxe White Memory Foam Mattress Topper with Straps King 3" Deluxe White Memory Foam Mattress Topper with Straps King A perfect combination of comfort and support, the 3" Deluxe White Memory Foam Mattress Topper turns your existing and uncomortable mattress into a super soft luxury sleep zone. Extend the life of your mattress or upgrade your mattress with the addition of this cushy layer. Made from premium-quality memory foam, it provides excellent adaptability and pressure point relief, and promotes airflow to dissipate heat. This CertiPUR-US foam topper is a safe and comfortable way to add comfort to your nightly sleep, and comes with convenient straps to hold it in place. 3" x 80" x 76"