When I got my first two, Zowie and Bronx, they were about 13 and 10 weeks old. They always slept together from the day we brought them home. We had a wire cage (like an x-pen) we got at Tractor Supply, it folds to 2' x 2' x 4", expands to 4' x4'. We put their cage w/ bed, pee pee pad, food and water, and toys in there. I don't ever remember them crying at all. They loved each other until Zowie was pregnant; now they love each other again (but Bronx is fixed now