If your feet are cold at night, put on a hat. Most body heat is lost through an uncovered head. Too much clothing inside of a sleeping bag restricts blood flow. Well made sleeping bags will keep you warm without excess clothing – too much clothing interferes with that. — Chris
A cool tool is anything useful that is superior to comparable items. If you think this tool is inferior suggest a better one. You are welcome to insult a tool, but comments containing insults to individual people will be deleted. Corrections of fact are always welcomed, if stated politely. Recommendations of better tools are dearly wanted and may be elevated to the front page.