My DS is 19 months old and he sleeps on his front kneeling with his bottom in the air. 8/10 times he will wake up in the morning after a 12 hour sleep with a wet midrift. What can I do to stop it? He is currently in Pampers Active Fits size 5. I've tried pointing "percy" downwards and changing him just before he goes to sleep and reducing his fluid intake but its more about the way he sleeps I reckon... help!