We’ve always wondered what our body goes through when we sleep. The good thing about the Dreem Band is that we can track your brain activity and know precisely which sleep stage you’re in.
A night with the Dreem Band
Yesterday, we had one of our team member sleeping with the Dreem Band. Let’s dig a bit deeper on his sleep stages throughout the night. Below is a summary in his own words…
When I put on my Dreem Band, I was awake. Nothing surprising here. I read a book for a few minutes, before turning off the light. My brain activity calmed down slightly but was still pretty active. Then it took me, roughly, 15 minutes to fall asleep.
I gradually entered into the light sleep.
The light sleep is typically a phase where you can be woken up quite easily. But we can see that I was able to stay in light sleep by my brain rhythm slowing down and muscles relaxing. On average, this stage represents about half a night’s sleep for any given person.
My sleep got deeper and deeper, reaching the stage known as deep sleep. Here, my brain was working to consolidate memory, rejuvenate cells, and restore energy in order to improve my mental and physical performance.
And, what about that final and most well-known stage, “REM”?
REM stands for “Rapid eye movement” and is also called paradoxical sleep. The level of brain activity at this stage is similar to the activity levels when I was awake. The difference, I couldn’t move my muscles and had almost no sensory perceptions flowing into my brain. This is the stage when it’s pretty difficult to wake up. You’ve heard the term “sleep like a log”? Yes, I was that log. My high brain activity was punctuated with visuals and senses, something we better know as dreaming.
This only represents the first 90 minutes of my night. The average person’s sleep typically consists of 4 to 6 cycles per night, with long deep sleep occurring in the first few hours and REM towards the end. Between the two cycles, there are often brief awakenings that we don’t remember. For example, based on last night’s data, at 0:30 hours, I may have moved, found a better position on my pillow, heard a noise, and then fallen asleep again. Typically, motion-based trackers may think of that movement as light sleep, but with the Dreem Band, you’ll accurately know your precise sleep stage.
At Dreem, we implement smart algorithms to automatically compute your hypnogram. In the morning, once you take the Dreem Band off, you’ll get a “deeper” understanding of how you slept the previous night!