Take your Therm-A-Rest camping cot from a one-season backcountry bed to a luxury sleeping spot that's ready for spring, summer, and winter with the Therm-A-Rest LuxuryLite Cot Warmer. Weighing virtually nothing, it uses elasticized hooks to clip on to the bottom of your cot and the ThermaCapture Radiant Heat Technology keeps you 10-15 degrees warmer while you're sleeping, so you wake up even more beautiful than when you went to sleep.