I kind of gave up on my RP (too much to do, not enough spare time to bother with eating/sleeping). but my Breton was religious and would pray to every alter she came across, aside from Talos. She also donated to all the beggars and temples. I only learned new spells or picked perks after I'd done some training with that tree, and never used soul gems or Daedric artifacts, due to moral reasons. It made things pretty interesting. I'll pick back up on the RP aspect after I've beaten the game and am familiar with most of the quests. I can't not do any of them at the moment.
This is awesome role-playing. Going through the motions of everyday tedium (eating, sleeping) doesn't make you a great role-player. In my opinion getting bogged down in these little details
detracts from good character development. A great novelist doesn't describe every trip to the bathroom. A great film doesn't show the protagonist going to their job and sitting in an office for 8 hours in real-time. Yet characters in fiction are colorful, moving, memorable, and inspiring; often moreso than people we meet in real life.
I guess what I'm trying to draw is a distinction between role-play and simulationist play. In case you can't tell, I prefer role-play.

Your Breton was a pleasure to read about. On the other hand I don't want to hear about how some guy made his character eat a potato every 8 hours on the dot. Who cares?