Stick RPG Complete
In Stick RPG Complete, the Coma-Snooze Bed can be bought in the Fine-Line Furnishings store. It is the only item in the furnishing store that has no real-estate requirements and you can buy this at the beginning of the game for $500. The effect of the bed is that it will heal 10 HP every time you sleep.
Stick RPG 2
In Stick RPG 2, the Coma-Snooze Bed can be bought at Wallymart for $2,200. The effect of the bed is that it will wake you up earlier. There are still no real-estate requirements for this bed.