The hack isn't totally baseless, either. According to a study published in the Physical Behaviour scientific journal, the research found that "in adults, sleep-onset was accelerated by [wearing] warm and neutral bed socks after lights-off and correlated to the increase in foot temperature".
In another 2018 study, published in the Journal of Physiological Anthropology, researchers discovered that "feet warming using bed socks during sleep in a cool environment had positive effects on sleep quality by shortened sleep onset, lengthened sleep time, and lessened awakenings during sleep but had no significant influence on core body temperature.”
Dr Andrade also shared another method to get a better night's sleep, called the "10-3-2-1-0 method", where each number is used as a cut off point to help you unwind.
10 hours before bed: No more caffeine
3 hours before bed: No more food or alcohol
2 hours before bed: No more work
1 hour before bed: No more screen time
0: The number of times you hit the snooze button in the morning
Other powerful tools to help you to fall asleep at a reasonable hour (and off TikTok!) is by ensuring you're reducing your time on technology prior to bedtime—a trick that both Jennifer Aniston and Gwyneth Paltrow reportedly swear by.
And there is science to support this theory, with a five-year-long study revealing that the blue light exposure from technology during sleep can disrupt the circadian rhythm (body clock) and lead to weight gain.
Moreover, the devices themselves have been found to be overly stimulating, thereby reducing the actual quality of sleep and consequently the ability to function optimally the next day.
Good luck, and sweet dreams!