How Homeless People Sleep In A Tent At −20°F Without Any Heat

It's twenty below zero.

Not twenty degrees. Twenty below. The kind of cold that cracks car batteries and closes school districts.

And somewhere tonight, there's a person lying in a tent in that. No heater. No electricity. No fire. Just a layer of nylon about as thick as a grocery bag between them and hypothermia.

In the morning, they're going to get up, pack it away, and go about their day.

So how? What do they know that the guy selling four-hundred-dollar sleeping bags doesn't tell you?

Here's what surprised me most: almost none of it costs money. The single most effective trick in this video costs exactly nothing and it's sitting behind a grocery store right now.

I'll walk you through every one, and I'll tell you roughly how many degrees each one buys you. That's the part nobody puts a number on. At the end, we'll add them up.