Need an adult night out big time. My husbands 30th birthday is coming up and we’d like to get out! My six month old is breast fed, and is started on solids. She will take formula, but she will NOT take a bottle or sippy. The only way I get her to drink it is out of a cup, like for a grown up.... she is seriously a PITA. My sister is willing to watch her though. I know she’ll be ok even if it’s a rough night. I’ve never left her over night. Any tips for sister?