Different babies have different sensitivities.. I think wool doesn’t irritate most babies’ skin per se, but because it’s warm, baby may be prone to heat rash. Cotton is still the best material for Singapore weather:) and my little one has not used a blanket since birth.. safer for infants to not have it:) If you’re planning to let your baby wear mittens/booties, would you consider knitting a pair of those instead?
I wanted to do that for my newborn too but decide against it. Singapore weather too hot and not sure if the yarn will irritate their delicate skin. So I think I will do something for them when they are older.
It may not be a good idea. Not recommended for newborns to use a blanket. Swaddles are better.
Knitwear not so appropriate for Singapore climate. May be save your effort.
Chu-Yu Tan