Well, the bathroom might be okay, as long as you puppy proof it (put trash cans and Toilet Paper up high and anything else they can get into), but I found mine didn't like being so closed up.
I use this pen and put mine in the living room. I really love it because it makes a large rectangle, so I can put bed at one end and wee wee pad at the other. Also, it makes a large octagon, so when we go outside, I can put it in that shape and my babies can run around the yard. You can also take two panels off and use it as a square and the other two to block off an area if you need be. I paid $59.95 for it at our local Toys R Us. Here is the link to the picture:
http://www.amazon.com/exec/obidos/tg...=baby&n=540992
Hope that helps!