Bed wetter.

I know she’s only a year old but she pees through her diaper EVERY night. I have a bed pad but I’m still doing laundry every day because she pees on it. I don’t know how to fix the issue. She doesn’t wake up to be changed and if I change her then she doesn’t go back to sleep (I work early mornings too). She still gets bottles at night and will fuss to get one. I don’t know when she actually leaks through when I give her the bottle she’s dry then when we wake up she’s soaked neck to feet. I tried using a size bigger to absorb more but it still doesn’t work.