I just love having mine inside, in fact I think they're inside about 7 months and outside for about 5. They are such a time waster though, I keep finding myself going in to talk to them and just watch them munching and playing (i have 11) ..... Mine are in the conservatory which would be way too hot for them in the summer, but hubby doesn't want them outside either so think he's thinking of putting air con in the conservatory! I think they do like being outside though, listening to the birds and feeling the breeze while they're snoozing in their hutch as well as their lawn mower duties.