When my oldest went through this stage I tried everything. Limiting liquids at night, waking, etc. Eventually he just grew out of it, although he still wets the bed sometimes (he is 6.5). My 2nd son when he was at the same stage, we just put him back into nappies at night. He is still in nappies but I figure he will stop wetting them eventually and he is happy to wear them because he knows the body will send a hormone to tell him to stop making urine at night and it is outwith his control.

My twins are having the occasional dry night now, but I am keeping them in night nappies a bit longer because they are a lot more upset by a wet bed than they are by a night nappy.

Basically just let your child guide you. If he is still wetting most nights and is not upset by pull-ups or nappies then it might be easier for everyone if he goes back to nappies until he is ready.