Have you ever had one of those nights where you did everything “right”? You went to bed early, you didn’t look at your phone, and you clocked in a full 8 hours of sleep. But then, your alarm goes off, and you feel like you haven’t slept at all.
It’s frustrating, right?
The truth is, sleep isn’t a flat line. Your brain actually goes through “waves” called sleep cycles. Each one lasts about 90 minutes. If your alarm goes off while you’re in the middle of a deep sleep stage, your brain gets “interrupted.” This causes something called sleep inertia—that heavy, groggy feeling that makes you want to crawl back under the covers.
The Fix: Instead of counting hours, start counting cycles. Aim for 5 or 6 full cycles (7.5 or 9 hours). If you need to wake up at 7:00 AM, try hitting the pillow at 11:15 PM. That extra 15 minutes gives you time to actually drift off before your first cycle starts!