Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: How far from the wall does the sofa need to be, so when you open the bed you don't need to move it?
Document: I do not know what could be worse than this sofa? it's terrible, I'm not tall, but my feet are always hanging, bed very hard, it is not suitable for sleeping, but also sit too tightly, I am very disappointed when I got it the box was broken character, and torn the bottom bed. Do not buy this horror:(
The style is very chic and timeless. The bed frame was very easy to assemble, however, I do wish it stood a few inches taller.
needed something for a small sitting and gaming area and this fit the bill. easy to convert to futon and it is quite comfortable
This couch is perfect for a small apartment. It is very comfortable for sitting and sleeping. Sharp-looking for a beautiful modern decor.
Product is exactly as depicted on line. It is sleek, and modern, which I like, and requires practically no assembly. Just screw on the legs; no tools required.. It occupies an elegant visual space and has cool  lines. I don't ask for more.
It's  a little overprice for its quality compare to other well build. It feels comfortable, the sitting position very low good for people around 5'-6&#34; and under. It will not be comfortable for people 5'-8&#34; and up because of low sitting position. It feels  flimsy, light but the trade off  is very easy for moving around.
If I had previous futon experience, I would have known this. I still love it though and everyone thinks it looks great.
I was swayed by the positive reviews but this is just some cheap plywood junk that will be broken in less than a year. Just watch the price because Amazon changes the price by $50 every other day. This was a rush order for the holidays, otherwise I would have researched my purchase better and chosen something more solid and comfortable.
I really this this futon. I've never owned one before so wasn't sure what to expect. It was very easy to put together. The box it came in had a hole in it and the futon cover was ripped a bit on the bottom from whatever punctured the box. I was able to put duct tape over it though since it doesn't show and I don't anticipate any problems. I like that it sits just at the bottom of the window so you don't see it from the outside.
Absolutely worth it...you will be amazed at how comfortable this futon is. For the price I got it for I expected many defects but there weren't any and I was very happy. It's soft and easy to use, worth every penny. It's not bad looking either.
Answer: The top of the sofa back would be11" from the wall.  I have the bottom platform touching the wall, which keeps the sofa back 4" from the wall at the top.  Moving the sofa in and out is very easy.  Easily a one person job.