Leo sleeps with us sometimes, sometimes with my daughter, sometimes on the couch. Basically wherever he feels like sleeping that night.
With Delilah, I planned on leaving her in her crate at night. It worked fine the first night. The second night was okay till about 3:00 a.m. She whined to go out to potty and when we came back in, she kept whining so I brought her into bed with me (I'm a pushover). Now last night, I didn't even bother with her crate and brought her in with me right away.
What can I say, I'm a sucker for snuggling!