Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Does this bag unzip so that it can lay flat when open, or is the bottom edge sewn closed?
Document: I got this sleeping bag for a camping trip up in the mountains. I am freezing all the time so I needed something serious to stay warm. Not only did it keep me warm but I use it at home now in my bed every night. It saves me from having the space heater on at night. The only downside is that the bottom doesn't unzip so I can't lay it completely flat but its not really meant to be a blanket anyway.
Only annoyance is that the zipper doesn't round any corners. The bottom and one of the sides are sewn so you can't open it completely for use as a blanket if you so desire.Overall, I am happy with the purchase and would recommend this sleeping bag.
The good.I tested it so far into the low low 40's and no problem staying warm. I used it as a blanket, opened the zipper up all the way. Does the job, not sure about 0deg, but I'd believe 15.The badBulky. Won't easily fit in the sack. Should've made a slightly larger sack and just rely on the compression straps to shrink it down.Bottom is sewn together, so can't unzip completely to turn into a blanket.
Went camping and the sleeping bag worked well. The bottom doesn't unzip which makes it difficult to use as a blanket across 2 people.
It also has a Velcro strap at the top of the zipper to keep the bag from coming unzipped.I am 6'3" and 175# and it fits me well.I have not had a problem with the zipper but was a little bit unhappy that the bottom doesn't unzip so that the bag could be used as a blanket or could have venting from the foot. That's the only drawback that I can see.I think that it is an excellent value.
I purchased this for my 6' 8" son. It was a great choice. He reports it is very warm. You can always unzip the bag if you are too warm..but if you are too cold...you are out of options.
I believe the bag will be good to about 25 degrees F, but not 0. The description said it fits people up to 6 feet but I am 5' 8&#34; and it barely fits me. I have a bit of a hard time getting the hood to close around my head. It will probably fit 6 feet if you lay your head on the hood and don't try and make it into an actual hood.
Seriously, unpack it and unzip it several times beforehand. The cheap zipper on the sleeping bag I received was terrible. It kept getting caught when I would zip it up and it also completely unzipped along the whole side. I do not want to hassle with that when I'm outside in the middle of the night. I also did not like the material on the inside of the bag. It is very synthetic and not breathable at all, I could see myself sweating profusely if I were to sleep in it.
I purchased this bag because I am always cold camping at night, even in the summer. I had a 30 degree mummy bag that just wasn't getting the job done. We just go home from a weekend camping trip that I purchased this bag for and it was amazing. It was 32 degrees at night and at one point I had to unzip my bag because I was too warm, enough said! Best night sleep I have had camping in the last 10 years.
Half-circle hood snugs around neck with drawstring. No-snag, self-repairing zipper opens top or bottom for adjustable ventilation and connects easily to second bag for shared sleeping space.My husband is about 5'6&#8243; in height and found that while the sleeping bag is comfortable, snug an warm, he was a bit too tall to fit in it properly. I, on the other hand, am about 4&#8242;ll" (yes, I know I'm short!)
Answer: yes