Its likely that on most nights your bedroom won't be any warmer than it is in the winter with your heating on. Unless you like your bedroom as cold as the Arctic like us-we have windows open and no radiator on in bedroom even when snowing...
In September/early October-heat wave there were some warm nights where the bedroom got to 22 degrees, lo still wore vest, sleepsuit, sheet and cellular 1 layer cellular blanket added in early hours.
I live in the UK so not exotic at alll lol! he still slept in just a nappy and blanket/grobag some nights and some days he was just in a nappy or a vest. In the summer im roasting in my bedroom and so was my lil man.
That heatwave last year that raspberry mentioned was one day where LO was just in a nappy, he was toasty and we had the patio doors open! He is a hot baby though and gets sweaty and hot and bothered very easily.
Tor my lo gets like that in the day now he's older, I hardly ever put a vest on him in the day under his clothes, some people/places have the heating on so high. Poor boy, he gets really cold arms and legs at night though.
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