Hello! Well my boyfriend and i just added a new addition to our household and we now have a 8 week young white female named Bianca. Along with that we also have a 9 month young brindle female named Dasia.
We purchased a HUGE crate (the wire kind) for Dasia a while back and she is only in there when we go to work. However we where curious to see if both of them would be ok inside (we would not have tried this if they did NOT get along) but Dasia loves her and we would put them in (supervised) when it was nap time..they just cuddled up together. We gradually left them in there alittle longer and we went to the store for about 3 hours and they did wonderfully. They just cuddle up and sleep. :D
I don't see why it would not be ok to put them in the same crate as long as the crate is big enough for both of them to fit comfortable. and if they get along and they dont' mind it

We do have seperate ones for night time. Dasia sleeps on the floor next to her crate and later in the middle of the night sleeps on our bed.