Rated 1 out of 5 by CoachDaley Pain to deal with
This bag does do a good job of keeping you warm. But when you get into your sleeping bag you sit down on it, get your legs in and then zip it up to the comfort level you desire. However, using this liner you cannot operate that way because it doesn't have a zipper. You must put yourself into it from top to bottom as it is actually a giant sock! Once you do that your hands/arms are restricted when getting into your regular bag. Also, if you need to move around or get out for a potty break the frustration just gets worse as you have to wrangle your arms up out of the top of this liner, then operate your bag zipper. After that you have to stand up so the liner falls to your feet before you are free of it. I'll be finding a seamstress that can add a zipper at least 3/4 the way down the top. Otherwise, this liner feels like being in a trap. Find one with a zipper and don't get this one.
July 2, 2014
Rated 5 out of 5 by Stan AMAZING
For the first time with temps below freezing, I was warm! Highly recommend!
May 17, 2012
Rated 5 out of 5 by EllyTraveler Great for long airplane trips
As an airline crew member, I use this sleeping bag liner rather than a bulky blanket in the crew bunks when working or in the cabin when I am a passenger. Standard blankets can slide off. With the bag liner, I can roll over and never lose my cover. When I am finished, I just stand up and drop it to the floor, then pack it in the small bag. It washes well too.
April 20, 2012
Rated 5 out of 5 by LDCal great item
Super helpful way to add warmth without bulk. Really soft too!
January 5, 2012
Rated 5 out of 5 by Kisa radiant
In the store I placed my hand inside the bag and could feel the heat from my hand being radiated back to me; it felt very warm. In the field the bag works well, feels very cozy, and added about 10-15 degrees to my down bag. It was especially helpful in keeping my feet warm. And it's perfect as a warm weather sleeping bag on its own in weather over 60-65 degrees.
June 19, 2011
Rated 4 out of 5 by YoungGun sleeping bag liner
the thermolite reactor extreme slepping bag liner is great and effective. It is soft and fleece like and works well inside a sleeping bag. Feels like a real blanket and adds warmth to your bag. However depending on you and the type of sleeper you are you may not get the results the tag says. it says it adds up to 25 degrees but for me I hink it adds a comfortable 10-15 degrees. Not bad. The real dig to this product is its warm weather advantage. No longer do you need bulky blankets are sleeping bags for warmer nights. this little water bottle size stuff sack will do just fine. You only have to carry about 7 oz.
December 27, 2010