9 month old pees through diapers at night

We just switched my 9 month old to size 5 diapers because 4s were too small, he has been peeing through all types of diapers overnight. We have to do his sheets daily and if we change him during the night he will be wide awake and not go back to bed. I’m not sure what else to do.. I can’t find overnight diapers in his size.. we use huggies. Any tips or advice?