cashew - i was worried it would be too hot also, think TOG 1.0 just nice. Kept waking up to check the first two nights, seems ok. My aircon is abt 24~25, bb in the mothercare sleepsuit.
My girl toss and turn a lot in her sleep, in her semi-conscious state, she would like to lift her legs high and grab her toes. You know the position Malays pray in the Mosque? Yes, that is her fav position (weird rite?)!! We put her on the back at night but she will switch to this position middle of the night. I used to use a blanket wrapped around her to keep her warm but she can toss/turn/flip very easily with that.
I noticed with the sleeping bag, it kind of discourage her from getting into the funny position, she either sleeps on her back or on the side.
Is your bb the active type when sleeping?