Re: 7 Year old not dry at night, ever!
I've had a few friends with kids a 5 yo, one with a 6.5 year old and one with a 9yo with this issue.
They found that it's not a pee issue, it's a poop issue. Basically if the kid is holding in their #2, their bladder is compressed and they are much more likely to wet. Chia seeds were the solutions that they found. Other laxatives may help, but avoid laxative dependence. After the child gets cleared out, they can't be holding it in on a regular basis. They need to know it's normal/healthy to go and not be embarrassed.