Nighttime diapers

Megan

My 5 month old sleeps through the night about half the time, when she doesn’t she wants to eat right away and doesn’t allow for a diaper change, and if I change her after she is fed she won’t go back to sleep. So she goes 8-10 hours in the same diaper. Here is my problem: she overfills the front of the diaper from sleeping on her tummy and it leaks. Is there something I can use to protect her sheets so I don’t have to wash them every day?