in about 2 weeks my daughter will be 1 and she is starting to wake up in the middle of the night she…

in about 2 weeks my daughter will be 1 and she is starting to wake up in the middle of the night she started sleeping through out the night at 5-6 months old and here lately since we moved back into my SOs parents she has been waking up in the middle of the night. how can/do I get her to sleep through out the night again?