Feeling too hot to sleep well is frustrating and can leave you feeling groggy and tired the next day. Of all the sleep hacks to help you learn how to sleep when it’s hot at night, freezing your bed sheets is proving the most popular on TikTok right now.  This hack has been around for years though and involves placing your bottom sheet (fitted sheet) inside a zip-lock or vacuum sealed bag, then sticking it in the freezer for at least 10 minutes before bed.
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