Bear Grylls Sleeping Bag 0F Degree (Women) - Thermolite Fibre, Blue

This bag is not a 0 degree bag. I have tested numerous bags. Whatever the temperature rating is is the survival rating not the comfort rating Comfort rating as a rule of thumb is 20 degrees more. That means a 0 degree bag should be comfortable if you are sleeping in long thermal underwear and a hat. There is no way you will be comfortable in this at 20 F. My wife tried this bag for the first time and it was a low of 32 degrees. She was sleeping on a 2" thick thermarest pad with an R value of 4.0. That pad is good against ground cold to 10F. She had the hood and the inside baffle cinched and could not fall asleep after 4 hours of tossing and turning. She had a medium weight northface fleece jacket on with full length leggings and socks. I swapped bags with her in the middle of the night. I had been sleeping in a 1970s Gerry down bag rated for 0F. I was actually too warm when I first went to bed and only got all the way in after it had cooled down later in the night. It was probably around 35F when I swapped bags with her and by the time the overnight lows hit 32F I was uncomfortably cold even with pants,T shirt, and medium weight fleece on with socks. , I could not sleep and I was also on a good sleep pad with heat reflective sleeve over it. Of course body fat composition has a lot to do with it. At 5' 9" and 175 lbs I'm not exactly fat free. My 0 degree Gerry bag which has lost a lot of its loft over the years and has been through the wash still felt like an inferno compared to this bag. To be fair if I had my North Face down jacket on over my fleece jacket I would have been comfortable at 32 degrees but I doubt you could wear enough layers underneath and still be able to move around enough in the bag to be comfortable at 0 degrees. I would put the true temperature rating of this bag as 20F survival and 40F comfort but you'd need to be wearing at least long thermal underwear and medium weight fleece with socks. This would make a decent late spring through early fall backpacking sleeping bag though because it is light weight, good construction, comfortable, and has an inside baffle to keep heat in. The compression sack that comes with it is a plus. You can crush this thing down to around 8" wide by around 8" tall. For a mummy bag it gives you reasonable space to move around which I like. The women's bag is a bit narrower than the men's bag but I still had enough room in my wife's bag to get into a comfortable sleeping position.

I really wanted this bag to work but I guess you get what you pay for in the end. Its a quality bag for the price the problem being is in my opinion its not a true zero degree bag. My wife was really cold at 45 degrees so synthetic or authentic down is our only option. In the bags defense she's a cold sleeper and we haven't found a bag that works for her yet. We will keep and use this bag but I will likely buy a full down mountaineering bag for her trips to the alpine.

This bag is the best bang for your buck! It compresses down to around 1'x1'x1'The only issue I had with this bag was when I was sleeping in it. I am a short girl, so every night if I slept on a small incline, I would sink to the bottom of the bag and I couldn't breathe too well. I would have to put some clothes at the bottom of the bag so I wouldn't sink too low into the bag during slumber. But I still highly recommend this bag to anyone who wants the best deal.

I took this on a snow camping trip. It is rated for zero degrees. At 12 degrees the first night, I was freezing! I also had a fleece blanket in my sleeping bag with me. The second night was about 4 degrees. I put this sleeping bag inside a second army sleeping bag and was fine. Also, the zipper came down during the night by a few inches, so my shoulder was extra frosty.It's a comfortable sleeping bag, but I don't recommend it for a cold trip.

Bought for camping, and Backpacking. No complaints from the princess bundled up in it through a couple cold nights in the mountains. Outside temperatures dropped to low 20s, she said she slept warm, and snuggly. The loud, ear rattling snores that emitted from the sleeping bag would be my findings that support the little princess's statements.

My complaint with this bag is that it's NOT a 0F degree sleeping bag, despite what's printed on it. My wife used it a week ago when it was 38 degrees at its coldest and she was uncomfortably chilly throughout the night. 38 vs 0 is a pretty big difference. Otherwise, it seems to be well made and the zippers don't stick. We paid $80 for it, so I guess it's not a bad deal, but considering it doesn't live up to its description, I'm pretty disappointed.

I'm 5'4 and about a size 6. The bag was too long and a little big. I took it summer camping and it kept me warm enough.

Very warm, and made for a shorter person which is perfect for me. Kind of hard to get back into the bag that it came with.