This subject has totally baffled me, as there is no definitive answer that I can find.
So, I went to Dunelm to see what they had on offer. They had Toy Stuffing, but no info re babies, and poly batting by the metre, but no-one around to explain the specification.
Using my common sense (in short supply usually), I went to the pillow dept to see what was on offer. I found the pillows well labelled up, and worked out quite cheap.
I felt on safe ground as one of the tutorials I looked at, the Swedish lady used pillows for filling. Lable pic attached, showing all the information I needed. Yes, the fire hazard is a worry, but DD has no open fires, and Theo will be kept safely away from sources of heat.
All done now, and on to the next one!
Thanks for your input everyone, as usual you keep things balanced.
Jessie