Four-season warmth that turns cold, hard ground into a luxury mattress Experience premium, backcountry comfort without compromise with the Therm-a-Rest Trail Pro MAX Sleeping Pad. Engineered for demanding four-season adventures, this high-performance sleeping pad features a hefty R-value of 4.4, utilizing specialized StrataCore™ construction to sandwich a continuous layer of thermal foam between alternating ridges of air and foam. The generous regular-wide dimensions offer extra shoulder and hip room, while the ultra-soft, stretch-knit fabric surface provides a quiet, skin-friendly texture that completely eliminates crinkly camp mattress noises. Equipped with the high-flow WingLock™ valve, the pad self-inflates to a plush 3 inches of thickness with just a few optional breaths to customize firmness, and deflates three times faster when it's time to break camp. Packed with a compact stuff sack, it balances rugged durability with luxurious, stable support to ensure you get a restorative night's sleep whether you are car camping or sub-zero backpacking.