Sure why not, we're waiting 3-4 mins to heal up from near death. Why not move 'inspirations' from random crafting to waking from your sleep... you build up the chance as you craft but need to sleep to be inspired. Cooking, comfort, wet, cold ect are all to break up the grind.
To me it seems the game is working towards living through a day. We dont have to stop atm, which for the "I need to level asap to max" crowd like, but if you had to actually go through daily chores it would add a lot of variety imo.
On other threads you complain that buildings have no purpose... well this is a purpose :)
Buff for renting doesnt make sense but crafting inside does, maybe 5min sleep or 10min crafting...
"Why would you want to promote having to go back home to rest up for a buff?"
In real life you feel better after a good nights sleep in your bed... It would also promote renting from other tribes since the buff is beneficial. If I have scrap i need from 4 zones away I could rent a bed/room form a nearby tribe to make it easier. If i am a hunter I might rent 3-4 rooms around the map so i can keep on the move...