If your baby is sound asleep, even if they have a dirty or wet diaper, there’s no need to wake him up to change his diaper. This will disturb his sleep cycle, cause sleep inertia, and cascade through the rest of the day because his sleep window will be lengthened.
Babies never go that long between feedings anyway until around 6 months or so, and you can rest assured as soon as baby wakes up for a feed you can change the diaper.
There are obvious exceptions:
* If baby’s diaper has leaked
* If they are sick and have something like diarrhea, which can cause pain and a rash.
* If baby is having trouble settling to sleep or connecting a sleep cycle (waking from early nap) and their diaper is wet or dirty, I definitely suggest changing it.
Should you wake a sleeping baby to change diaper?
