I tried the Nordic hack that can make or break your sleep — experts explain how to do it so you fall asleep fast and don't wake up at 3am

Doctors explain how to nail this cold weather sleep trick ...
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How to Go to Sleep Fast (and Stay Down for the Night)

All products featured on GQ are independently selected by GQ editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. For years, 41-year-old ...