Sea to Summit Comfort Deluxe SI Mat Byron BlueThe ultimate in luxury for base campers, the Comfort Deluxe Self Inflating Sleeping Mat features four inches of plush foam and a 30D stretch knit fabric on the upper surface for a luxurious warm feeling when its cool, and a cool feeling when its hot. The flip over multi function valve makes packing up the pad relatively easy because it prevents air from being drawn back in as it's rolled up.