Nae, my ds was two weeks old his first Xmas and I offered to host the party, thinking it would make things easier. It sucked hardcore. We ended up with 30 guests. I was absolutely exhausted. Everyone offered to help, and, granted, they did bring all the food. But they left with a huge mess to clean up. They were here all day (11am- 11pm). And they played 'pass the baby' so for the next two days I had a screaming, unsettled little bundle.

Sorry, I know that's not very optimistic. My advice would be to set boundaries- make sure you trust those that say they'll help to actually help, put bubs in the sling so they aren't passing her round, and make sure it won't be an all day event with stacks of people.

Sorry again i really don't mean to put a downer on things. And to actually answer the question you asked, my dd is 5 weeks old atm and she just sleeps, feeds, poops and screams. A good age to be a party guest if ever there was one