Recently, after I shared a video on Instagram (which raked almost 2M views in 10 days!) explaining that there is a huge difference between going to bed at 9:30 p.m. versus 11:30 p.m.—especially in terms of deep sleep—I received an avalanche of messages. Many people wrote:
👉 “Yes, but if you’re a night chronotype, it doesn’t matter. You can go to bed at 2 a.m. and still get the same quality of sleep!”
True or false? After digging into the research, here’s the verdict:


