Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Does the zipper go across the bottom of the bag? This way the bag can open up fully and be used like a comforter.
Document: If you want the one-sentence version, scroll to the bottom.Pros-  HUGE. I am not a big guy, but I still enjoy my space when I'm sleeping. This bag allows me to roll over and stretch out as necessary without the restrictions of a mummy bag or smaller rectangle bag. My dad is a large guy (6'3", 230 lbs), and on our recent hunting trip, he used my spare bag and commented on how big and comfortable the bag is.-  Warm.
I was not looking for a backpacking sleeping bag. I wanted a heavy duty bag like the ones we had YEARS ago. This delivers.For really cold weather camping, I put a 100% wool blanket or Down Comforter inside a 100% cotton flannel duvet. (I am partial to the Pinzon 190 gram duvet covers by Amazon.). Then I fold it in half and place it inside my sleeping bag and use it taco style.
The flannel lining likes to stick to wool socks, almost like velcro. I lost my socks the first night I slept in it.2. Im 6'1" and ~300lbs. I wish the bag was a bit longer and wider. Especially since I toss and turn alot, especially while on the floor.
Once or twice a year, I find myself needing a very warm sleeping bag for cold-weather camping. I previously had a 20-degree rated bag that would do fine for most temperatures above zero, but last winter I had to camp in some -10 degree weather, and it was simply unbearable. That miserable experience forced my hand to buy two (one for my wife, one for me) of these bags. I have finally used the bag and feel I can write an accurate review.
I have no doubt this bag would be comfortable in sub-zero (fahrenheit) temperatures, likely approaching its -25-degree rating.-  Durable. Having only owned this product for one season, I have to project its durability, but the canvas exterior, heavy duty zipper, and thick interior lining have me believing this bag will last me many years to come. The only parts I question somewhat are the straps for rolling the bag.
This is a heavy duty bed similar to the bags my parents used for our family when I was a kid. They are very sturdy and extremely warm beds. I highly recommend them, especially for those who boat and camp during the winter months. I have 2 of them on cots in my 1965 OMC. They keep us warm and toasty in the low temperatures on the water overnight.
This bag is very well built, very warm on those cold night's andshould last my 6 year old Grandson a life time, wish itwere made in the USA
This sleeping bag is pretty nice. I took it out twice so far in 30 degree nights, and ended up getting a little hot. I had to unzip and stick a leg out.
Really nice sleeping bag. It's heavy, warm, and durable. Definitely a great buy! The canvas outside can withstand a pretty heavy beating in the woods, and it retains heat very well.
Good heavy bag, and very warm. The lining is not typical flannel in that it has a smooth finish, but it is cotton. However it is warm and stays in place even if you toss and turn. Its a nice heavy bag.
Answer: yes