Apparently it's all to do with sleep cycles rather than getting more hours of sleep. If you wake up at the wrong time during a sleep cycle, you'll find yourself more tired - even if you were asleep for longer. So if, for example, you need to be awake by 6am, you should either get your head down at 8.46pm, 10.16pm or even 11.46pm or - if you're feeling like a real night owl - 1.16am.
However, if you’re increasing your sleep debt over a longer period of time- say, if you’ve just had a child and aren’t able to get a full eight hours every night- you can’t easily make it up over just a few nights. In cases like these, it may take a few weeks to really fill your sleep debt. Your best bet is to plan a vacation or stay-cation with a light schedule and no obligations, and then turn off your alarm clock and go to bed and wake up when it feels natural. This will “reset” your sleep system so that while you may be sleeping 12 hours a night at the beginning, you’ll eventually settle back in to the amount that is your basal sleep need.
If your circadian rhythm is off, it negatively impacts your sleep quality. So having that consistent rhythm of going to bed and getting up at the same time will actually make your sleep more regenerative at night. Going for a walk outside and getting that sunlight in the morning is the best thing to do to wake up. Your circadian rhythm isn’t a fixed thing: It’s actually shiftable based on your environmental cues.
The FDA has not approved antidepressants for the treatment of insomnia, nor has their use been proven effective in treating sleeplessness. However, some antidepressants are prescribed off-label due to their sedating effects. As with all depression medication, there is a small but significant risk of suicidal thoughts or worsening of depression, particularly in children and adolescents.
Create the right sleeping environment. Studies show that people sleep best in a dark room that is slightly on the cool side. Close your blinds or curtains (and make sure they're heavy enough to block out light) and turn down the thermostat (pile on extra blankets or wear PJs if you're cold). Lots of noise can be a sleep turnoff, too. Use a nature sounds or white-noise machine (or app!) if you need to block out a noisy environment.
Goel, N., Kim, H., & Lao, R. P. (2016, October 27). An olfactory stimulus modifies nighttime sleep in young men and women. Chronobiology International, 22(5), 889–904. Retrieved from https://www.researchgate.net/profile/Namni_Goel/publication/7469424_An_Olfactory_Stimulus_Modifies_Nighttime_Sleep_in_Young_Men_and_Women/links/5811f6b408ae9b32b0a34d4b.pdf
Social or recreational drugs like caffeine, nicotine, and alcohol may have a larger impact on your sleep than you realize. Caffeine, which can stay in your system as long as 14 hours, increases the number of times you awaken at night and decreases the total amount of sleep time. This may subsequently affect daytime anxiety and performance. The effects of nicotine are similar to those of caffeine, with a difference being that at low doses, nicotine tends to act as a sedative, while at high doses it causes arousals during sleep.
Stage 2 non-REM sleep is a period of light sleep before you enter deeper sleep. Your heartbeat and breathing slow, and muscles relax even further. Your body temperature drops and eye movements stop. Brain wave activity slows but is marked by brief bursts of electrical activity. You spend more of your repeated sleep cycles in stage 2 sleep than in other sleep stages.
Set a Routine. If you get up early one morning and then sleep in the next, it can be hard to fall into a rhythm. For the 17 percent of Americans who do shift work, an erratic schedule may be part of the job. But if that doesn't apply to you, going to bed and waking up at roughly the same times every day can help you fall asleep faster and sleep more soundly.