Hi, DS is just gone 4. Day training was no bother, we left it till he was 3 and ready and he trained in a weekend, no accidents since to speak of. But he's still in pull ups at night a year later. I'm not sure what to do. His big brother was dry at night within weeks of day training. Should I try lifting this guy or will he figure it out himself? His language skills weren't great till recently but he's catching up now so we've talked about it but he doesn't seem to care. Thank you!