its happened twice now. my son likes to sleep in just his diaper at night since we live in the south and its hot. plus he gets heat rash so its good for his skin to get some air. but he keeps getting outta his diaper. each time when get him up in the morning theres poop lol. thank god for bleach, lysol . so im gonna put him in his shorts for bed or onsies although i hate restricting his skin since hes so sensitive.