serweet 10-Inch full-size medium-firm hybrid mattress can provide you with an extremely comfortable sleep with the pocket coil support layer. The pillow top soft skin-friendly fabric enhances the comfort level of this full hybrid mattress. Deep Sleep Starts Here! This hybrid mattress incorporates the latest bedding technology, which combines traditional coil springs with the latest generation of gel memory foam to provide the best sleep experience. In order to offer a suitable mattress, serweet mattresses are the first in the industry to recruit sleep testers. After more than a year, has combined the real sleep experience of more than 1, 200 professional sleep testers. After dozens of R & D engineers repeatedly reached and improved, finally developed this hybrid mattress with the most cost-effective, which meets most people's sleeping needs.