Re: Interrupting nap times?
What we used to do a lot with dd1 was us all go and try and put her down in the pack 'n play. We did it often enough that usually she would. If she wouldn't, then one of us leave early with the baby and the other go home later by bus or with someone else at the party. She had to have her nap too.
dd2 wasn't as fussy and we'd just usually keep her up and she'd be fine. She's just never needed as much sleep. She's 3 now and dd1 is 8 and she's always the last asleep.