Ultra 3R Sleeping Mat by Exped

So far, so good…

Holds air, which is my primary concern. Comfortable when not quite fully inflated, the mattress is like a rock when full. Got 13 nights of sleep on it while going from Tuolumne Meadows to Carson Pass. The inflation bag is beyond my skill level for efficiency, so I inflate by mouth, in about 1/3 of the time.

OK

I was plenty warm in the low 40s. I've used it twice fully inflated. I'll see if I'm more comfortable slightly under-inflated. My arms still hung off with a wide mat.