Toddler sometimes pees in bed at night

My 3 year old started potty training like 2 weeks ago. During the day she is great even at kindergarten she is doing fine.. but some nights she wets the bed. Before going to bed she pees at 10 pm and i always wake her up at like 3 am for her to pee again and that way she is fine. But some nights she will wet the bed before i wake her up. Do you have advice for the nights? I dont want to put diaper on her for the nights