I had 3 hamsters and they never kept me awake but they will make youre room smell and you gotta clean the cage. I've been looking for the same thing and i was thinking of adopting a cat, theyre big enough that you can play with them and not lose them and theyre smart too. my dog (family pet) *HATES* it when i smoke. she flipped on me when i came near her with smoke once so i never tryed it again. she hates it when i smoke cigs too along with one of our cats (the other one is nuts and hates every one, especially me). good luck, dogs are the best pets. Peace