I have been worrying lately that LO is too cold at night which is why he wriggles and wakes up so am just interested to see what the rest of you do. The room is consistently between 17.5 and 19 degrees all night. He wears a short sleeved bodysuit and a long sleeved sleepsuit with feet. He is then swaddled in a brushed cotton sheet folded double. That used to be all he had so I then added tonight a cotton cellular blanket (single layer). I kept feeling the back if his neck and chest and it still was a bit tepid so I added a brushed cotton sheet. 10 minutes later the back of his neck felt a bit sweaty so I removed the sheet and now it just feels warm. What do you do? You would think I'd have this sussed by 9 weeks!