Not being unreasonable. You’re giving them a full day, compared to your families few hours. Also I think baby might be over stimulated with everything if it’s full on for the full 2 days. With my first she didn’t cope very well with Christmas and Boxing Day being full on and needed time to sleep and recover.
I 1000% agree with Sarah!
Nah I think you’re ok with your reasoning. If you want some time to celebrate as just your own nuclear family that’s fair enough if you’ve given a whole day to friends and family to celebrate too. Plus they’re having the Sunday evening too, which in my eyes is a bonus! My mum has never seen my eldest son on his actual birthday the last two years (partly due to Covid) but this year she’s staying for his entire birthday weekend. No idea what we’re doing for my little one yet (28 Oct) but I hope she comes for the whole weekend for him too, but our situation is very different as she lives 4 hours away so we only see her every 3 months or so. Anyway, you’re not being unreasonable in my opinion.
I'd have all family together on the Saturday in that case and keep the Sunday just for the 3 of you.