Yahoo: A survey of more than 2,000 people found that three quarters (78%) admit to “revenge sleep procrastination.”

And when it comes to what app is the worst? A separate study of 128 people, revealed that TikTok is the killer of sleep quality, with participants spending just 14 percent of their sleep cycle in REM (almost half of the recommended amount for a healthy adult) after using the video app, compared to those who had no electronic engagement and spent 23 percent in REM.

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