Bill, were you burning hardwood? Most of the places I go in the winter are in pine and hemlock, which throw lots of sparks and burns quickly. I'm thinking more in lines of something like the SOL tarp shelter (I've slept under one twice this summer) with Suzanne's fire blanket fireplace. Suzanne, what brand of blanket is that?- some won't last a continuous fire. Or if you know the specific material? Thanks.