Is 4 and a half normal age for still wetting at night?

[Moomin]

My friend's ds is completely dry in the day but shows no signs at all of wanting to be dry at night. she recently tried him without pull-ups at night and he wets every night; she also gets him up to go to the toilet although I know some people don't think this 'method' is useful for training. She's getting fed up with lack of 'progress' and thinks it might be easier/better to go back to pullups at night for now at least. Any suggestions?

sorry, quite a few 'quotations marks' there!

DS was nearly 5 before he was dry at night. We had tried previously, and he'd go a couple of nights and then wet again. It suddenly just seemed to happen - he had a couple of dry nights in pull ups and so we took them off and that was it. I honestly don't think it's something you can make happen - i would go back to the pull ups for now and see how he goes.

Yes, it's perfectly normal.

Dd is 6 and still not dry at night. It's not seen as a problem until they are 7.

It's not something that you can "train", there is a hormone which suppresses urination overnight and until that kicks in there's nothing you can really do to make "progress" with it.