Heavy, sturdy sofa/futon bed

This is a 93" wide sofa with a futon bed. It is very heavy and sturdy, with a solid wood frame. It needs to be vacuumed and cleaned a little but is otherwise in excellent condition. To move it out it'll have to go through a doorframe into a hallway, around a corner at the end of the hallway, then out the front door and four steps. It's hard for me to see how movers actually got it into the room it's in, and I don't want to risk damage while it's being moved out, so please only take it if you can bring at least one helper and some know-how and experience when it comes to moving items like this. Otherwise I won't allow it to be moved and you'd have to get some pros to do it. Thanks for understanding.