Here's why you should never put off the alarm clock
You are also part of the group that postpones the alarm clock as long as possible. Hey five minutes, here's five more minutes... There's a scientific reason why you shouldn't do this anymore. Neuroscience explains "sleep inertia" in two words. When you press the button and snooze, it puts your brain back to sleep. Researchers have found that the brain returns to a sleep cycle that takes 75 to 90 minutes to complete.
So when that alarm of yours goes off again in 9 minutes, you wake up like "Oh my God..." Stiff as if awake from a deep sleep. This happens because the sleep cycle, which should have been completed in 90 minutes, was completed in only 9 minutes. That feeling of tiredness that you will feel later throughout the day is not related to the fact that you did not sleep well, but because you pressed that button and made the sleep of inertia.