I carried mine for 7 days in archery in Colorado. No complaints at all. Compacts easy, great system for those of us who are side sleepers or like to move around when you sleep. I have the 25 degree quilt and 40 degree sheet. At 30-35 degrees I could sleep in a T-shirt and boxers and still had to crack open the quilt because I was hot. If I had one knock to give, it would be that the hood portion is fairly useless if you use any type of pillow. It works to keep the pillow in place, but don't count on it for much protection. I use a Thermarest small travel pillow and it filled up the hood area. The only other downside is the sheet configuration requires the use of a square ground mat, which adds a bit of weight.