Night time pull up question?

[Tayluuuuro]

DS is 3 nearly 4. Still in night time pull ups potty trained for a year but had a phase of accidents this summer which were over

With the night time pull up over the year there's been dry nights and some with wee in it. Nothing major

But lately he is filling them and irs leaking? Im changing and washing his bed every day! Its been a week nearly 2 I dont get why?

I've limited drinks pre bed time and ensure he goes the loo right before sleep

Is there any tips here ? He sleeps 7/7.30 to 6/7am

We are having a huge backwards step too currently, I really dont understand why. Weve started changing my son's nappy whilst he is sleeping just before we go to bed, otherwise it leaks. We tested for a urine infection but it wasn't that. Have you tested for that yet?

How would I test for that please? He doesnt have a temp and is well in himself just a cough and cold!

And in the day no accidents etc

Just seems to be weeing a lot of a night! Im going to do this tonight change his night time pull up while hes asleep before I go to bed in the hopes it doesn't leak again

You can ask at your doctors, or you can buy urine dip tests on amazon to check yourself. Get your son to to pee into a little jug or something then you just dip them in. They're really easy to use.