My son needs a bed- best options???

My son needs a bed- best options???

My grown son currently sleeps on the couch in the living room.This couch is rather old (my aunt gave it to us when she moved almost 3 years ago and it was old then) and it does have a fold-out bed but my son only tried that a couple of times and decided he didn't care for it. I've been trying to decide what is the best option. I've considered getting him a daybed or even a futon. Whatever- it will be going in the living room. The reason being- the upstairs attic/bedroom has been filled up with junk (not my choice)and at any rate- he likes to stay up at night watching TV which is in the living room. I can't really afford anything too expensive. As far as I can tell- the mattress and/or box springs are the most expensive part. I could probably find a used frame somewhere. Does anyone have any suggestions? Ideas? Thanks.
Neato tree bark

Neato tree bark

Sharing Garden Pix

Sharing Garden Pix

iheartmyhammock

iheartmyhammock

My room

My room

My son wishes for real spring too.

My son wishes for real spring too.

The strange year continues

The strange year continues