ProLite Apex Sleeping Pad Large is a lightweight self-inflating sleeping pad from Thermarest that provides sleeping comfort, support and warmth. The ProLite Apex 3.8 R-value allows adventurers to stave off the cold during three-season pursuits. The packable self-inflating pad features the high-performance WingLock valve, which has three-times the airflow rate of the classic valve thanks to a larger opening and one-way inflation. The pad includes a compact stuff sack. Therm-a-Rest ProLite Apex Sleeping Pad Large Heat Wave | Buy Therm-a-Rest ProLite Apex Sleeping Pad Large Heat Wave here | Outnorth