So is a heatsheet the best way to go? or a large walmart truck window cover? I think the heatsheet would be more flexible and I would plan on keeping it as one unit and packing it a stuffsack and using my snakeskins for a larger tarp.

I was reading another member getting down to -27F using additional pads and a quilt below the heatsheet and between the additional pad and the OCFexisitng pad to take up the a sandwich.

I am planning on doing some cold weather hiking and living in Wisconsin will allow me to take advantage of cold weather.. guaranteed.

Kind of excited to get rid of the pad in the hammock, that is less than desirable.