Bed wetting

It's been two months since we started weaning them from pampers (diapers). We've been waking up the two elder children at around 1am every morning to let them take care of wee-wee business, so that they won't do it in bed.

There are ways when we miss by a few minutes and it's too late.

One night, I went over to their bed and touched both to see if they are still dry.  Both were.  I picked up Domu and brought him to the toilet.  When we came back to bed, I picked up Pia, and she had already done her thing.  In bed.  Since then, I've started to pick up Pia first.

Current score since we started the program:

Pia : has wet the bed 6 times

Domu: 1 time.

How long will it take?