My daughter has been potty trained for a long time now and for at least a year never wet the bed or anything . She's now doing it most nights and I don't know why. She doesn't even realise she's done it she gets up in the morning totally oblivious to the fact that she's lying on wet sheets. She doesn't wear pjs so I don't realise until a bit later when I go to make her bed. Any ideas of how to help her? I try to limit drinks before bedtime and she doesn't drink alot through the night.