Very pleased with this pad. I've had both hips replaced and I'm a side sleeper - no issues or pain as opposed to my older Thermarest. Recently returned from a 3 day - 2 hike in the Black Mountains of NC and temps the first night were in the low 20's. I was concerned about the R-value in those temps, but we prepped the ground under the tent with pine needles, and if didn't experience cold transfer issues from the ground. There are two reasons I didn't rate the Astro with 5-stars. 1. When removing the Vortex pump sack, it was sketchy to not pull the value all the way out causing rapid deflation. 2. The tri-fold roll-up design was difficult to line up properly on a consistent basis. Both of these things are small issues in my opinion, but worthy to drop one star rating.
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