Honestly it's only for the first week or so that he will be napping so much during the day.
Every puppy I've raised (5 of them) got into the swing of the household and stopped napping, and starting following people around during the day.
As for the housebreaking thing and where they spend the day. Alot of hardcore trainers recommend that until they are housebroken they spend the day in the crate. Coming out only to eat, do their business, a short play session (20 mins) and business again...then back to the crate.
I can understand how this would really help with the housebreaking, but then what fun is it having a puppy?! They only stay so tiny and cuddly for a short time, and I say take advantage as long as you can for as many minutes as you can each day!
I basically gave Boone the run of the mainfloor (exception to the dining room with a new white rug) during the day. I paid for giving him too much freedom with a few accidents here and there, but it was too much fun to have him following me around all day to block him off somewhere.
I did however pop him in the crate for a few hours of "Tina's Sanity" time throughout the day. Also I work 8-4 monday to friday, so he's in there with a potty break halfway through the day at those times. Unless the boyfriend is home (which is often with his work). I'm a firm believer that if a puppy never has an accident in the house, he can never learn that it's wrong to go in the house. While I commend keeping on his so much that he doesn't get the chance to potty indoors, if he slips up it's a perfect opportunity to teach him that it's not ok to go indoors!
Whew sorry for being so long winded! Have fun!