Marijuana's effect on REM sleep??

My friends dad confronted him about smoking weed in his room (which we dont, we vape in his boiler room, he probably smells the weed itself). Understandable, it's his house, if he doesn't wanna smell weed he shouldn't have to. But he also told my friend that the reason he cant wake up in the morning is because marijuana prevents you from going into REM sleep.
This is the first time I heard this so I googled it. From what I read, there was a study done by a Dr. Feinberg in 1975,

Electroencephalographic readings and eye movement were recorded in experienced marijuana users under placebo and tetrahydrocannabinol (THC). Four subjects were studied for 3 baseline nights, 3 nights under initial dosage of 70 mg/day, the last 3 nights of a 2-wk period of 210 mg/day, and the first 3 nights of withdrawal. Three other subjects were studied only during the latter 2 conditions. Administration of THC significantly reduced eye movement activity during sleep with rapid eye movements (REM) and, to a lesser extent, the duration of REM itself. Withdrawal led to increases above baseline in both measures but the “rebound” effect was greater for eye movement. Stage 4 sleep tended to increase on drug, but this effect was not statistically significant. On withdrawal, stage 4 sleep decreased significantly; this change was marked only on the first withdrawal night. The functional or biological significance of these changes is unclear. Nevertheless, these are the most marked effects of THC on brain electrical activity demonstrated thus far.

http://lucidguide.com/dream-articles...ffect-dreaming

I have seen this particular study used as an argument on 3 different sites. Im not compelled, the test group is extremely small and it's a study done by one man almost 30 years ago(not to mention, everyone I know that smokes weed says they sleep great high, and wake up feeling even better). I feel like anyone against the use of marijuana will seek out any negative evidence and believe it, regardless of the lack of research(which is what I think of my friends dad, he heard it once and now its fact inside his head).

So my question to you all is, has anyone heard of this before? and is there any more extensive research out there? Thank you for reading

hmm.. ive never heard this before.. but i know that just in personal use.. i use marijuana to help me with a few different things.. (A.D.D., pain, and insomnia).. And I know for me that using marijuana right before bed not only allows me to fall asleep quicker.. but all of my dreams seem much more vivid, and i can remember them more. When i dont use it.. i typically lay in bed for a few hours before i fall asleep, and the next morning i remember bits and pieces of 1 or 2 dreams. But when i fall asleep under the influence of mary-jane, I tend to get more sleep, wake up feeling much more rested, and remember entire dreams with pretty good detail. But thats just me. I've never really taken time to look into studies about it.

I agree, I have crazy dreams when I smoke Indicas...I can't sleep at all on certain Sativa's though

I used to smoke weed everyday and I never had dreams. as soon as I stopped my dreams came back, and man I wish I could start again cause these dreams are fucking insane.

I have heard and do agree with this statement. It was also postulated by William S. Burroughs, an outlaw, writer, and drug advocate, in such works as The Adding Machine and The Job. Just because you support marijuana use, doesn't mean it won't effect your body on some level. The air you breath and the water you drink effects your body...so does marijuana.

It definitely diminishes REM sleep in me. I'm an active lucid dreamer and once I started smoking I stopped dreaming almost completely but whenever I lay off smoking my dreams comeback and I can stay in them way longer. Every now and then I'll remember very short very hazy dreams even if I have been smoking but I can't control them nearly as well as normal. I have to say tho I never wake up groggy if I don't dream but if I do dream I'm usually exhausted when I wake up.

So it is possible that someone might not get as deep of sleep after smoking weed. But I assume this varies depending on the person.

i have to say im with cronic ive had years of personal study lol and i always sleep like a rock on some good ind and wake up great with lil sati but never really have remembered any dreams either way unless they were just crazy ass shit

From what I understand it depends on the strain you're using before bed. Sativa will most likely keep you alert (head high) but get some Indica (body high) and chances are you'll sleep like a log.

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Originally Posted by John Alighieri

From what I understand it depends on the strain you're using before bed. Sativa will most likely keep you alert (head high) but get some Indica (body high) and chances are you'll sleep like a log.

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True.. But i dont know anyone who uses sativas to put them to sleep. I was "reefering" to indica's when i was talking about heavier sleep and more vivid dreams. Though i would be curious to know how sativas would effect your dreams. I just know that if i already have trouble sleeping.. there's no way i could fall asleep after some sativa's. My problem is once i lay in bed i cant stop thinking about stuff long enough to relax and fall asleep.. so i would only assume after a sativa strain.. it would just make sleeping 10x harder seeing as though sativas tend to take my minds thinking from a constant drip to a flood of thoughts.

There's some other legal plant you smoke that causes no effects while awake but supposedly makes your dreams super vivid. I can't remember the name of it but I would like to try it after smoking weed to see if it balances it out.

This is absolutely True. I smoked weed for 12 years all day everyday. I didn't dream for 12 years. When I quit, The dreams and nightmares were so intense and so often. I could even wake up and remember some of them. Not sure if I like weed or dreams more.

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Originally Posted by Jesse Bell

This is absolutely True. I smoked weed for 12 years all day everyday. I didn't dream for 12 years. When I quit, The dreams and nightmares were so intense and so often. I could even wake up and remember some of them. Not sure if I like weed or dreams more.

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I know right? They can be really fucking awesome then turn into an absolute fucking nightmare in a split second. Like the most fucked up shit you could imagine. and then you wake up, and be like.. did that shit come from my mind??

I have terrible Insomnia and all I know is when I smoke I can sleep, when I'm abstaining I struggle with either just getting to sleep or once every other month or so I'll have a week of unbearable restless leg syndrome. As an athlete I really can't afford not sleeping and the only other way I can sleep is alco-mu-hol...which is really terrible rest anyway...I'll take the decreased REM I guess.