Med thumb bear grylls

If anyone knows how to sleep soundly in the wilderness, it’s Bear Grylls. The former Man vs. Wild host has summited Everest, suffered icy plunges in Siberian waters and fought off starvation in the jungles of Borneo. He’s successfully side-stepped Everglades alligators, avoided frostbite in Antarctica, all the while surviving on such tactics as dirty-water enemas and the eating of many shit-encrusted insects. This summer, TV's best-known survivalist will shepherd celebrities across wild locales on NBC’s Running Wild with Bear Grylls.

Van Winkle's asked Grylls how to build shelter — and, ideally, survive the night — when stranded in the wilderness. Because, as Bear will tell you, preparation is everything.