I am wondering a similar thing! I was just cd'ing my ds at night and catching 1-2 pees per night (which isn't nearly as great as during the day but better than nothing), but then I had mastitis several days ago and sort of fell off the horse completely because I just couldn't potty him at night when I was sick. Now we have been catching zero at night and he's just been going in his diaper and I'll change him about twice during the night, offering him the potty but nothing--we've lost our rhythm. I was considering experimenting with diaperless but think we'd all end up soaked, and here in PA, it's cold enough that we need covers at night, so then we'd have a soaked comforter, too... I was thinking of fashioning some sort of loin-cloth idea, using one of those elastic prefold belts, I could maybe put a few prefolds under him and few above and then take wet ones out as the night progresses... But I'm hesitant about possible side-spray, and also because he's now a pretty heavy wetter at night... So no advice, unfortunately, but I empathize with your question and am curious what more seasoned ECers of sons do (like you, I found it easy to be diaperless at night with girls, but the boy thing is new to me...).