Can you fold a king-size mattress in half?

Yes, you can fold most king-sized beds in half to move them. It is difficult and people are pretty torn on which way to fold it (lengthwise or width-wise). However, a lot of folks said their bed was never the same after folding it and their mattress was creased down the middle and some even had sagging with their bed.

If you have an innerspring mattress, you should try to keep the folding to a minimum, however having to slightly crease or bend it probably won't do too much damage. So, if you have to bend it, don’t overdo it. There are also some mattresses that are hinged in the middle for this exact reason, including innerspring, so look into what kind of mattress you have.