Help! 1 yr old suddenly waking up crying frequently

Heather • Maggie’s mom

FTM here and my daughter has been a great sleeper for months. Goes to bed without a problem and usually sleeps from 7:30-7:00. But this week she has woken up 3x within an hour or two of going to bed. I was able to rock her for several minutes and she would stay asleep but right now we’re going on two hours and three attempts to get her to sleep for good. Is she doing this because grandparents are visiting and her schedule has been very hectic (nap schedule off, less daytime sleep, going to bed later, busier during the day, etc)?