When I was about 14-15 years old whilst on a 3 star expedition in the mountains of the Isle of Man, I remember seeing a spark from a camp fire float about 20 yards down wind and then make contact with a WW2 British Army Cotton Canvas pup tent. Only the smoldering tent poles were left standing about 25-30 seconds later. Thankfully the 2 cadets inside made it out in time. It might have been a different story if they had been in their 58 Pattern sleeping bags. A synthetic fire resistant tent material would have been a lot less dangerous in this situation as the same spark would have just left a little hole in the material.

But this tragedy with the explosive heat flash over effect of a propane fire sounded extremely nasty. Even a down sleeping bag would have been just as flammable as any synthetic bag filling in this situation.

Perhaps it should be a rule, that when camping that no cooking is performed whilst anyone nearby is still sleeping.