Thought I would pick this up in new new thread as the other one was quite old. Been looking at what tog duvet to get for my kids (6 and 9). After lots of research it seems that a 4.5 tog is best for kids. Anyone have a view. I found this useful [https://scooms.com/blogs/duvet-tog/duvet-tog-ratings duvet tog guide]]. Like the idea of Hungarian down!