Thanks for the info Smuscha. How should I touch base with you regarding a few questions I have?Have an older 3 man frabill flip over and a smaller 2 man frabill flip over. Both are non insulated tarps but have reflectix in the ceiling which helps a lot. Sleds in good shape, tarps show a little wear from age but do their job. 150 for the 3 man and 100 for the 2.