As the world's first online mattress to offer Comfort Control Technology on the most popular sleep surfaces, iSense gives the customer the control to create a sleep experience on each side of the bed, making their experience as unique as they are. From the luxurious feel of the fabrics on the bed to the pressure-relieving comfort layers underneath, Comfort Control mattresses are carefully crafted to delight the senses. 87% of customers reported better sleep on their iSense mattress. It's a significant difference... you'll be surprised.