My 10mnth old daughter's slpng pattern has changed b'cos of her grandma.wn cn it be regularised again?

it's b'cos we r staying at her grandma's place for 2 mnths.they all slp after 12 midnght &talk so loudly tht she gets up &they all play wth her&i've to make her go 2 slp only after they slp. wl her hlth be affected & wl she get back her regular slpng pattern