I have bought two of these in the last 5 years. For different rooms. And I've slept on both for several months at a time. The single is rated to 1200 lb. You unfold it and screw in six screws that have handles you can hand turn. It took me 10 minutes by myself and most of that was getting it in the right spot.
And it's high enough for plenty of storage space beneath. I can get a litter of kittens or three grown cats under there at same time. You can also get several storage boxes under there.
I don't make any money from it I'm just satisfied customer.