Solstice® 16151SF Aqua Window™ 2-Person Floating Mattress 78" x 56" 6 per case, with see-through window headrest. At Solstice® we’re boaters, floaters, swimmers, divers, paddlers, anglers, tubers, and wave-jumpers. We make it our mission to spend more time on the water and we've created a family of watersport products to do just that!