I'm hoping to get some suggestions from the hive on this one.

We've been having nighttime diaper leakage issues with my son for a few months. He's a heavy wetter at night and he has peed through every solution we've tried so far.

He's 6.5 months and 20lbs. When he wears disposables during the day he wears size 3 Honest Co diapers, so we tried size 4 on him at night...didn't work. Then we tried size 4 7th Generation Nighttime Diapers on him, and he managed to leak his way through two of those last night. He always seems to leak out the side of the diaper, and we attempt to point his penis down, (though, he's a chunky guy, so it makes it a bit difficult). He's also a side sleeper, so that might be why he leaks out the side of the diaper.

We also cloth diaper during the day and when I'm not woefully behind on laundry, so we've tried double stuffing our bumgenius diapers, and our one kauai diaper. They seem super bulky, but he does have slightly less intense leaks out of those.

He's waking up every 4 hours, and we change him at either his 10:30 or 12:00 feeding, but he's typically soaked by his 4am feeding. I get the feeling that he would sleep for a longer stretch if it weren't for the discomfort, so we're highly motivated!

So, any suggestions for a nighttime solution for us? I might kiss you if you can figure this out for us!