The 90-minute schedule is its major flaw, and likely not fitting into my sleep pattern, as basically no one’s sleep cycles are consistently 90-minutes throughout the night. Oexman then told me why the calculator wouldn’t be great for the long haul. That actually makes the normal adult’s sleep cycle anywhere from 90 minutes to two hours. In fact, like Oexman said about deep sleep, all of the stages change in regards to their length-and they don't have to follow the same pattern for every sleep cycle.
The Link Between Sleep Quality and Heart Health.However, throughout the night, each stage of REM can lengthen in time.
The first cycle of REM usually occurs 90 minutes after you fall asleep and lasts about 10 minutes. It can be characterized by vivid dreams, so real your brain actually believes what happened in your dream is reality. (We’ve all had that feeling at some point.) Oexman also let me know that most stages of deep sleep occur in the first half of the night and are typically absent for the last half of the night.įinally, the fourth stage is known as REM sleep. In stage three, you are finally in a deep sleep, and if you were awakened, you may feel disoriented for a few minutes. Stage two is considered light sleep and is categorized by intermittent periods of muscle tension mixed with muscle relaxation. This stage occurs when you first close your eyes and start to doze off. (REM stands for “rapid eye movement.”) Within non-REM, there are three stages: Stage one is considered a very light sleep, where if you wake up you wouldn’t feel like you actually slept. He started by going over the four stages of sleep, broken up into two categories called non-REM and REM. Robert Oexman, a 12-time marathoner and the director of the Sleep to Live Institute, to get a better grasp on how sleep cycles work and to see if the sleep calculator was the best tool to fix my troubles. With my frustration growing each day, I wanted to know more. Instead, many nights were spent wide-eyed under the covers and more anxious about trying to fall asleep than actually sleeping. And that stress to just get to bed didn’t help as I always try to wind down before going to sleep. I found myself rushing around when I finally got home from work so I could be in bed and ready to go to sleep at 10:45 p.m., which was the “best” sleep time for my ideal 6:30 a.m. However, for me and for many, every single day is different, and sometimes going to bed at an exact time is simply out of the cards.Īfter about a week of using the calculator, I started to realize that the next month was going to be a little more difficult than I first anticipated. On paper, going to sleep and waking up at a certain time shouldn’t be too difficult. The calculator also works the opposite way-there is a “if I go to sleep now” option that tells you when to wake up if you go to sleep within the next 15 minutes. It also suggests four other times after that, but you wouldn’t be getting the required amount of snooze time. or 11:15 p.m.-taking into account that it takes the average person 15 minutes to fall asleep.
I need to go to sleep now full#
It then gives you six “go to bed times” that would correlate to you waking up between full 90-minute sleep cycles as opposed to in the middle of a deep slumber.Īccording to Jordan Lewis, a postdoctoral sleep disorders researcher at Penn State College of Medicine whom I spoke to at the beginning of my experiment, a good night’s sleep for the average person consists of about five to six sleep cycles. First, it prompts you to enter in a time that you want to wake up, let’s say 7 a.m. Let me explain the basics of the sleep calculator. The sleep calculator was an okay starting point, but the longer I used it, the more I wanted to figure out if I was really nailing the best way to maximize my Zzzs.
It seemed simple enough (and it was free), so I decided to give the sleep calculator a try for a month. I found a website called, but there are several other tools and calculators that work the same way online. Google, which suggested a sleep calculator.
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