I have the same problem with my little girl I've tried all and these are the only ones that don't leak for us xx
Huggies! I had issues with the pampers after size 4. They ran smaller and lots of leaks.
We use the pampers premium pants for nights. They’re on offer for half price in boots or Tescos quite often x
I had a tip to size up overnight?
We've just started to have this problem from size 6 pampers too x
The purple pampers pull ups, I don’t know if you use the red or purple ones but we found the purple ones hold more
Pampers premium protection size 5+