I’d say it really varies person to person.
Do you mind washing daily? Do you have a tumble dryer? Winter/summer baby? Other kids/family commitments etc?
Given your other child was refluxy I would say definitely air on the side of caution and go a little overboard. Additionally you don’t want to be spending any moment the baby is asleep constantly hanging out washing.
I’d say 20 sleepsuits? We used to go through maybe 4-6/ in a 24 hour period so that could keep you going for a few days.
As for outfits, again entirely dependent on your circumstances. Do you go out a lot? I know a mum who’s a really big church goer and she always likes the children (including baby) to look nice, it works for her and I know a few more who simply prefer the kids in leggings and tops rather than sleep suits - whatever works for you!
By the time mine were out of the baby baby phase so maybe a month I found leggings and a top a lot more practical, that way I only had to strip half of them at a time.
So I’d say maybe 4 pairs of bottoms and four tops and see how you get on? Again that could save you a couple of days washing.
Maybe one or two ‘nice’ outfits for a nice picture of them or if you get invited somewhere/go on a day out?
With my eldest I bought an absolutely beautiful two piece dress and bloomers that was from trotters (a proper wanky posh kids brand) on eBay. It should have been about £60 but I got it for a tenner and to be fair she wore it quite a few times and I love looking back on the pictures.
I also cannot agree with pramsuit enough! I would again recommend a spare!
Bodysuits I’d match the sleepsuits so again I’d say twenty.
Given that he’s due April I would also say keep his wardrobe somewhat wintery! My youngest is a spring baby and I didn’t think I’d need lots of warm things but how wrong was I? Definitely a nice few cardigans and a thick hat! Again, rather have it and not need it then not have it!