So, I've been crippled for a while, and have the poor mans version of this:
[] (==) ||
[] Wall
(==) Bed
|| Computer Desk
Got a bunch of surgery recovery pillows to prop me into an inclined position, Computer Desk just has a TV on it, got a wireless keyboard, wireless mouse, and i have a folded up sheet with an ergo mouse pad.
... most people can probably pull something like this off, with a $50 - $100 set of differently arangeable surgery pillows, and I guess a wireless (i suggest 2.4 ghz) mouse and keyboard.
Resolution on the TV ain't great, but I've only got a Steam Deck, so.... beyond 1920 x 1080 is generally a bad idea anyway.