Our room is 17°c. My baby is 4.5 months Since birth I have been using a blanket tucked in both sides of the next to me for baby to sleep in. Last night I put her in a 2.5tog sleeping bag in order to 'get ready' for when she gets moved to her own room I don't want her to be under a blanket where I can't see her or possibly get it tucked in. I put a long sleeve vest on her and she woke up so much! Would you say I didn't put enough clothes on her underneath so she was waking up cold? Or is she just going to need to get used to not having the blanket tucked across her at night?
We follow the recommendations that came on the Tommee Tippee sleeping bags we used initially - for room 18-20 wear a long sleeved bodysuit, for room 16-18 use a onesie (but no vest underneath). Seems to work for us. (This is with 2.5 tog sleeping bag)