I have a similar issue with my almost 5 year old son. He has been dry in the day since he was 2 and a half but is a very deep sleeper and just is nowhere near being dry at night.
I initially had him in disposable pull ups but then thought I would give cloth a go...
What I have found is that the recommended things like Minki Yoyos and ME bedwetter pants are FAR to bulky to fit under PJ bottoms (the ME bedwetter pants practically balloon
) and are actually quite hard for LOs to pull down if they do manage to get to the loo for a wee. To top it all he was wet most mornings so they didn't really perform as expected.
I have resorted back to the dry nites PJ pants
I'm not sure that this really helps you - I have also toyed with the idea of SS pockets if I could find one that took enough stuffing. I'd be interested to hear how you get on...