Hotel sitter for a baby for a wedding

We have a 1.5 year old and in town for a wedding. There are events both Friday and Saturday night (5/31 ans 6/1). I’ll be 9 mo pregnant so won’t be there but my husband and baby are attending. We’ll be staying in the Hilton Polaris. Bedtime for our daughter is 7. We need someone to essentially sit outside the room and listen to the monitor for two nights so my husband can attend the evening events. He’ll do the whole nighttime routine. We just need someone sitting outside the room with a key and monitor in case anything happens. Bring a book or a laptop to watch Netflix! To meet my husband and get sorted we’d want the sitter to arrive around 6 to Hilton Polaris both nights and work until 11.