![]() Either your overall sleep will be longer than average, or the proportion of REM sleep will be more than usual. Symptoms like this can sometimes signal that you’re experiencing REM rebound sleep.Īlso known as the REM rebound effect, this rest and recovery phenomenon occurs when your body stays in this stage longer than usual. Having this happen most nights can be particularly confusing, especially when accompanied by headaches or mental fogginess. Waking up after a night of vivid dreams can feel quite disorientating. REM rebound usually results from being extremely stressed or sleep-deprived, so it is an adaptive response to your daily life. If you often find yourself sleeping longer than the average 7-9 hours each night or feeling like sleep is made up of too much REM, then you could be experiencing REM rebound. Regularly sleeping too much or too little can disrupt your natural circadian rhythm. So, occasionally having too much REM sleep isn’t necessarily a cause for concern. When you experience an unusually large amount of REM sleep during one night, it’s because your body has recognized that you were sleep deprived and is helping you correct that. Your body is also clever and understands the importance of REM sleep, so if you missed out on a suitable amount one night, it prioritizes this sleep stage the next night by ensuring you begin REM earlier. When you regularly have deep, restorative sleep, around 20% of this sleep will be in the REM stage, sometimes as much as 25%. ![]() However, it’s important to focus on having a good amount of rest each night rather than worrying too much about a particular stage of sleep. Poor concentration, trouble remembering things, a lack of energy, and low mood are all signs that you’re not sleeping enough and, thus, probably not experiencing enough REM at night. Other factors affecting the amount of REM sleep include some medications and consuming alcohol a few hours before bed. However, having this structure to your sleep also means that if your rest is a little shorter than the average 7-9 hours, then REM is the stage you’ll miss out on the most. As most REM occurs during your later sleep cycles, you sometimes feel like you’ve just been dreaming when you wake up. REM is the stage where you do most (but not all) of your dreaming. During the night, you will experience multiple cycles of sleep, flowing through each of these stages during each cycle, with REM coming last after the light and deep sleep of NREM. REM is one of the four sleep stages, with the others being non-REM (NREM) stages 1-3. For most adults, it’s usually around 90 minutes, but this doesn’t happen all at once but during different cycles of your sleep. The amount of REM sleep we have each night varies throughout our lives. But as your cycles continue, your REM sleep will get longer until your last cycle, which typically lasts around an hour. How much REM sleep do you need?ĭuring your first sleep cycle each night, your REM stage will be short, lasting only a few minutes. That is why having adequate rest after a stressful day is an integral part of your recovery process. However, research has shown that REM sleep helps you heal from traumatic experiences by suppressing troubling memories. This movement of your eyes behind your eyelids, the increased speed of brainwaves, and temperature fluctuations are why some scientists call REM “active sleep.” However, during this stage of sleep your muscle activity is suppressed, so you remain physically relatively still. REM is the unique fourth stage of sleep characterized by rapid eye movement (hence the name) and brain activity patterns similar to when you are awake. During this sleep stage, your brain transfers short-term memories from your motor cortex to your temporal lobe, ensuring they become long-term memories. REM is essential for your mental and emotional recovery. In this blog, we’ll look at how and why it occurs, how much you ideally need each night, and what happens if you experience too much REM sleep. ![]() ![]() REM sleep happens every night, but several factors can affect the amount you experience. Ever woken up from a long, vivid dream and thought, “What the devil was all that about?” Chances are, you were having an adventure in your REM stage of sleep, where your body may be still, but your mind is dynamically active.
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