I've been doing some agency work in some and incontinent/immobile residents have their pad checked/changed every 2 hours throughout the night, or are repositioned in bed.
Some of them slept through but many of them woke up. Plus hourly room checks which sometimes wake them up even if you're quiet.
I know that the pad changes and turns are to protect their skin integrity and avoid pressure sores and so on.
I just feel bad that they have to be woken up several times every night, I'd hate it if someone did that and it must make them exhausted.
Don't know what the solution is though.