My suggestion, would be to get an xpen, where you can put food, water, toys, bed and a pee pad(I love xpens). If you get one, make sure you wait until at least 12 weeks, as most of the time, if they're small and are going to have hypoglycemia(unless it's a pretty good sized pup) it will be in that 12 week period. I say go for it. the reason I say this is, I'm home all day, if I'm on the floor playing with my dogs, they will play, but, as soon as I quit paying attention to them, all 4 of them(including the puppy) go and lay down and sleep. Most dogs on the studies they've done, sleep all but about 4 hours a day. Just make sure when you get home from work, you spend a lot of time with him/her spoiling! I think it's more quality time than quantity time..Another suggestion, buy 2 of them..