Today's questions:
1) What verb do you use to describe a process of making an expansible furniture, um, become something else? For example, I have a couch which is capable of being turned into a bed if you pull out its bottom part to expand it. I was thinking about the verb to fold, but I don't think if it's the right word. Also I would like to know a verb of a conrary meaning, as in to make my couch back into a couch

I would use вытащить, вытянуть, расправить or even сделать to mean the first part of my question in Russian. Заправить, собрать, or втащить

for the second part