Specifications: Color: White Available Size Variants: Twin / Full / Queen / King Material: Polyester, Memory Foam, Gel Overall Dimension: Twin Size: 74" x 38" x 3" (L x W x H) Full Size: 74” x 53” x 3” (L x W x H) Queen Size: 79” x 59” x 3” (L x W x H) King Size: 79” x 75” x 3” (L x W x H) Net Weight: 11/15/18/23.5 lbs Key Features: Cool Gel Infused Mattress: Infused with cooling gel, this memory foam mattress topper helps to regulate temperature by dispersing body heat, ensuring a cooler sleep environment. The ventilated design promotes air flow, maintaining a comfortable sleep temperature. Enhanced Softness and Support: The breathable polyester cover is designed to keep your sleep surface clean and fresh. Besides, this soft mattress topper features high-density memory foam that contours to your body, offering ergonomic support and pressure relief. Secure Mattress in Place: Featuring an anti-slip bottom, this mattress topper stays firmly in place, preventing any unwanted movement. The twin/full/queen/king size mattress pad comes with adjustable elastic straps to fit up to 14" deep mattress. Mattress in a Box: The 3-inch foam mattress comes in a box, which means it is compressed and rolled up for convenient setup. All you need to do is unboxing, taking the mattress out and expanding to its original shape within 48 hours.