If you’ve ever tossed and turned all night, battling a too-hot or too-cold bed, you know the importance of temperature for a good night’s sleep. But did you know that body temperature plays a major role in not just falling asleep but also staying asleep?

You check your phone one last time before bed, just a quick scroll. Maybe you're catching up on messages, watching TikToks, or reading the news. Then you lie awake wondering why you can’t fall asleep.