Description： Sweetnight hybrid mattress offers both customized support and luxurious comfort. 10 inch mattress with a gel-infused memory foam layer conforms to body contours, relieves pressure points and regulates temperature. Individually pocketed coils provide support for proper spinal alignment and help to reduce motion transfer. The air-flow between coils provide the perfect of breathability. High-density foam provides reliable long-term support. This full mattress cover is made of hypoallergenic fabric that promotes airflow for a cool sleep. Product Size： Hybrid mattress full size: : 75"L x 54"W x 10"H Hybrid mattress queen size: 80"L x 60"W x 10"H Hybrid mattress king size: 80"L x 76"W x 10"H.