I've just got my 3yo DD1 some Minki yoyos for night-time, since she's grown out of all her 2-parters and wanted to get her something she can take off herself. They seems like a good system but we've just had endless leaks. It just seems to me that there's too big a gap around the legs, and perhaps the thick fleece inner stops the wee soaking through to the inside quickly enough so it runs out the side. Has anyone got them to work well? What do you recommend stuffing them with? We've tried a big pile of terry boosters, which looked too thick, and ended up with a folded terry square. Any other tips to make the yoyos work for night time? I've heard good reviews of them as a night-time nappy for toddlers, so I must be going wrong somewhere, or my little girl is an odd shape!