1996 to 2000 Chevrolet suburban
With the 3rd row seat removed and the second row folded down you have enough room to fit a full size mattress pad and it lays nearly completely flat all the way through, you have about 20" leftover at the end of the mattress pad
Has a roof rack, which is convenient for a storage box so you don't have to keep everything extra inside, some room underneath the folded middle row seats for incedentals like snow chains, jumper cables, etc
They are easy to add a front hitch mount and most have a rear hitch, which can be used for a cargo tray, giving you room for a cooler, generator, extra storage, etc without much trouble
It is also easy enough to install a second battery in the engine bay by removing the storage box, its a good solid motor, and they don't cost much to buy, easy to work on, and cheap to repair
I love my 1996 suburban, my advice would be to not do heavy towing with them without first adding an external trans cooler though