Hi
I'm having an end of oct/early nov baby too. The other thread was started by me. I've bought both long and short sleeve. A few cardigans as well. The point about air conditioning is a good one as if it gets too hot it will be cool in the house and then bubs will definitely need long sleeves to avoid a chill.

I remember worrying about it with DS then it became routine once he was here. All the best for you and your bubs