Cooling gel infuses the upper foam layer of this bed, and the whole slab flips to a firmer high-density support side when the weather turns. That two-layer structure is what lets one bed work through summer and winter without a second purchase. Bolsters wrap three sides to give a dog somewhere to rest its head, closing the space into a couch shape rather than a flat pad. The bed measures 41 by 33 by 13 inches, sized for medium breeds, and weighs 14.5 lbs. Silicone particles across the base grip tile and hardwood so the bed does not slide when a dog circles before lying down. Short plush fabric covers the top, and the whole cover unzips and goes through the washing machine.