my sons use 4.5 for whole year as they said it is very hot in the boarding house with the heater on all year round!
we just ordered them from Marks & S for beddings, etc.
my sons use 4.5 for whole year as they said it is very hot in the boarding ...
My child told me the heater will be switched off after midnight (maybe for environmentally friendly reason, for the not too cold days), so my child need to use the thicker duvet during winter time.
some of his friends buy 4.5 tots and 1 blanket to use when it is cold, normally they just use 4.5tots
4.5tots+9tots will be too hot for even colder weather as they have heating on all the time.