Customers most agreed on the following attributes:
I used this product in the Corocavado rain forest in Costa Rica and in numerous hostels also. Very comfortable and easy to pack in its included stuff sack. It was so comfortable that when I did have a bed with sheets I still used the liner and slept on top of the sheets. Never got to use it as a liner but in warm weather it works great where temps range from 70-80.
Got this hoping it might be enough to use for warm weather, i.e., June/July/August. It may be but feels a bit thin. Still, I think it will be a nice addition to my gear and at only 4 oz. it doesn't have a great cost to carry it. I can fit it into the same stuff sack as my tent or my sleeping bag w/o any problem, that's nice, that is to say it can be put anywhere w/o causing displacement of other gear.
This product is amazingly awsome. My friends are always cold at night, and I am toasty warm inside my sea to summit reactor. I recomend it to everyone looking for a nice warm and comfortable sleep. It wards off chills and makes a great lightweight warm weather sleeping bag
Great addition to your gear rack. I have an ultra light weight 30 degree bag that needed a little extra for my midwinter backpacking trips. I would say it honestly added 8-10 degrees of warmth...odd mummy draw string,somewhat off putting fit, and 9 ounce pack weight...otherwise nice product.
Great bag liner. It seems to be a bit delicate, so it's best to be relatively careful with it. This is the trade off you get for very low weight. It could stand to be a bit less expensive too. 15 deg F? Maybe, but it's pretty hard to say. Definitely recommended.
I have used this product for several years now and swear by it. It's just enough to keep the bugs off when it's hot and adds a comfortable layer inside your main bag the rest of the time. Helps keep your main bag clean, just throw the liner in the wash.