REM sleep is the fourth stage and begins approximately 90 minutes after you fall asleep. Tissues are repaired, cellular energy is restored by eliminating compounds, the work of many of your hormones begins, and learning is established. It’s a key moment of your rest since it’s when your brain carries out tasks of decisive importance. They appear at different stagesĭeep sleep appears at the third stage, which is also known as ‘the healing stage’. We’ll now explain the differences between REM sleep and deep sleep. Your heart rate and breathing slow and it’s extremely difficult for you to be woken.įrom then on, if your rest is sustained, you’ll begin the most significant stages of sleep. This is a period that lasts between 15 and 30 minutes in which your muscles are completely relaxed. It’s in the third phase that you finally approach the threshold of deep sleep. Gradually, you navigate toward the second stage, when your brain waves slow down and your body temperature drops. At this time, it’s really easy to be woken up. You start with non-REM sleep, which begins with a small transition phase when you waver between wakefulness and sleep. 75 percent of it is NON-REM sleep, and the remaining 25 percent is REM sleep. The differences between REM sleep and deep sleep Among other things, the choice depends on your technological preferences.Even if you spend ten hours in bed, if you fail to spend 13 percent of that time in deep sleep, you’ll wake up feeling exhausted. The most suitable model to choose from the many sleep phase alarm clocks differs from person to person. Due to the associated radiation, however, not everyone is prepared to place their smartphone next to their pillow throughout the night. The most well-known of these is called Sleep Cycle. Sleep tracker alarm clocks are not only available from aXbo and co., but also in the form of smartphone apps.

The leading producers of a wide variety of sleep phase alarm clocks or sleep tracker alarm clocks include aXbo, Philips, Sony and Fitbit. Sleep trackers are available with an alarm function in fitness armbands or as contactless sleep monitoring systems for your mattress. This can help us in optimising our sleep. These also allow us to learn something about our sleep phases, sleeping behaviour and sleep duration.

Generally, sleep phase alarm clocks are reliable at waking us up but for some people it may also be the case that they do not always recognise the moments of superficial sleep.Īlternatively, there are sleep tracker alarm clocks. If the sleep phase alarm clock does not identify any moments in which we are almost awake, it wakes us automatically at the end of the set time window to be safe. The sleep phase alarm clocks then wake us by ringing or vibrating during a time period specified by us. The sensors recognise this through our movements which increase at these moments. Sleep phase alarm clocks address precisely this issue: via sensors in an armband, the alarm clocks sense our almost-awake moments. Waking up at these moments is more pleasant for us than during deep sleep phases. NREM stands for non-rapid eye movement.īetween the sleep phases, there are moments in which we are almost awake. The REM phase alternates with the NREM phase, which includes the light and deep sleep stages mentioned above. Incidentally, REM sleep is also referred to as “paradoxical sleep” or “dream sleep”. This is because the brain is networked differently during REM sleep than it is during deep sleep, finding itself in a state similar to that we experience during waking hours. If you wake up during REM sleep, you can usually vividly remember your dreams. The REM phase is considered to be the dream phase. This is likely so that we do not act out the wild dreams that our brain plays out in our minds during REM sleep. Only our muscles remain fully relaxed during REM sleep. While we sleep, our body therefore consumes almost as many calories as it does during the day when we are at rest. In REM sleep, our brain activity, breathing, pulse and blood pressure almost increase to the levels they reach when we are awake. During the REM phase, our body once again steps up a few gears. It is for this reason that researchers named REM sleep after the term rapid eye movement (REM). Our eyes begin to move quickly to and fro.

Difference between rem and deep sleep