A good night of anxiety free sleep is the holy grail. For you as well as your baby.
Do whatever you need to do and don't make allowances for anyone.
I had a baby who needed a rigid timetable. Believe me I tried to keep it free and easy and "have a life", but it just didn't work out and we all suffered. Every time we deviated we were up all frigging night, and the next night too. It took three frazzled days and tear filled and teeth gnashing nights to settle back into the routine. So not worth changing it.
Sleep deprivation is used as a torture, and if I deviated from routine we all went crazy with lack of sleep. Crazy.and you just don't understand that unless you've been in those trenches. It's like Nam!
Personally and based on my experience of having a very fussy baby and hyper state anxiety of not getting enough sleep. I say you're not being unreasonable in the slightest. You know your baby best and you know what tolerance he has for deviation from the routine.
Do whatever you have to do to get everyone settled to your satisfaction.
Happy mum = a happy babe.
And your pal.... Well friendship works both ways. If she's a stroppy mare about this, you don't need her at this time. Do t feel guilty about ditching her for a while.
Someone much more important has a prior claim on your time. She should get with the program, or take herself off, and you'll see her when things aren't so intense.
and maybe until she has kids herself she won't get it, so don't even try and accommodate her if she's resisting your reality.
Why can't she go for a walk or go and get something to eat, and pop over when you're free? That's a solution if she's insisting.
Really. It sounds to me like she wants to turn up at your office and chat when you're doing your work... Looking after a baby is work. She wouldn't dream of you coming to her office and expecting her to be available when she's still working.
Just tell her to come later, or not at all!
Her choice, but that you're working and can't entertain her. She's a grown up, she can take it... Or not, in which case, it's her loss, not yours.
This rigid phase doesn't last forever, and you may find that friendships end.
You'll make lots of new friends when you're in the playground and school, so don't worry you'll be Johnny no mates if you don't bend over backward for these 'childless' friends.
They'll never get it until they have kids themselves, really, so suit yourself and your baby. Not to worry!