No heating at night Caz, it is a propper growbag, not just a sleeping bag, so I think he would get way too hot with bodysuit, pj's and extra blankets on top, must be a fair bit colder where you are!

Christy, I didnt mean the growsuit, you know those lightweight stripey bonds suit with no feet, they are quite thin. I will try him tonight in the light flannies with no socks and see how he goes