The Stages of Sleep
Before we can understand how cannabis affects our dreams, we need to know some of the basics about sleep. Human sleep has four phases:- NREM (Non-Rapid Eye Movement) Stage 1 – the transition period between wakefulness and sleep.
- NREM Stage 2 – a light sleep where awareness of your surroundings fades.
- NREM Stage 3 – the deepest stage of sleep. Muscles relax, breathing slows, and blood pressure drops.
- REM (Rapid Eye Movement) – this stage is short, but the brain is most active during this stage. The body experiences a sort of paralysis, where the sleeper can’t do anything except breathe and move their eyes. This is probably so that we don’t act out our dreams, injuring ourselves or others in our sleep.
Will Missing REM Sleep Hurt Me?
Despite the many theories about the importance of REM sleep, a lack thereof does not seem to cause any harm. Obviously, it’s not good to miss out on REM sleep – our bodies do it for a reason – but surprisingly, scientists have found that missing REM sleep does not appear to lead to long-term issues. Interestingly, the body cannot continue to function for long without all of the other sleep stages, particularly NREM Stage 3. While there are no long-term consequences to missing your REM sleep, as far as we know, there may be some short term negatives. For example, a 2016 study using mice as subjects found that ongoing REM deprivation can impair spatial memory. This means that you may be clumsier, or less likely to find things you set down. This state may continue for up to three weeks after you catch up on REM sleep.
Why Does Quitting Cannabis Cause Strange Dreams?
If you go to bed sober after a period of frequent cannabis use, you’ll likely experience strange, intense dreams. This is known as REM rebound, and it is essentially just your body catching up on the REM sleep you missed recently. You may experience more nightmares and more dreams in general. Fortunately, you should be all back to normal in two or three weeks. Missing out on REM sleep won’t hurt you, but it can slow you down a bit in the short term. Fortunately, if you want to enjoy some cannabis but still make sure to get some REM sleep, you can. Studies have shown that the relationship between cannabis and REM sleep is dose-dependent, so all you need to do is practice moderation: small or moderate doses of cannabis can help you get to sleep without any significant REM suppression.If you want to learn even more about growing good cannabis, we offer a free 40+ page guide full of images.
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Mike Drouin is the co-founder of Reefertilizer. He’s an experienced craft cannabis grower and a writer of many articles regarding the process. Mike lives on Vancouver Island and enjoys cycling and camping and will sometimes combine the two.


