Moms do bury their babies. I myself do use the pelleted wood bedding with my nursing moms. I never have enough in there where the moms could even bury the babies in it; I change it to fresh pellets a few days before the mom is going to give birth. Along with this I provide a secure hide spot. The moms invariably use that.. I also add in some shavings for nesting material. Please do Not use socks or cloth pieces. I recently had a poor baby's hand get caught in the thread of a sock I had placed in there.. it looked painful and I will not use cloth ever again.