Cheap without being from China is a tall order. For 20 degree comfort, get 0 degree bag. Yes, you could go 20 degree bag and add a comforter. And sleep in a hoody. Might toss in a couple of the chemical had warmers to keep your feet warm. Sleeping cold sucks bigly. Maybe go with a China bag to save $ and donate $25 to the Trump campaign. That might even it out in the long run.