When I first started cloth diapering (almost a year ago) I attempted using cloth at night. I double stuffed and had no issues most of the time. The smell was pretty strong in the morning though, which makes sense with cloth but other than that and the occasional leak I didn't have too many issues. I went back to disposables at night though because they just seem to hold more overall, and more comfortable since the CD would be pretty bulky.
Do you CD at night? If so, what do you use to control overnight leaks?