LandsUnknown
Bluelighter
Granted, this is quite an unusual and rather strange hypothetical question, but I have wondered about this at times when I hear stories about the stuff that sleepwalkers do. Luckily, I don't sleepwalk, so this isn't something I need to worry about 
Since I'm in my 20s, I very, very highly doubt that I'll start either since I've never done it. I do have sleep paralysis often, which is sort of the reverse of sleepwalking (e.g. REM paralysis lasting longer than necessary rather than not long enough, resulting in a sleepwalking episode). At least, this is how I have always heard the sleepwalking phenomena described. I do have a serious fear of it though, especially as I have heard stories of sleepwalkers driving and even having sexual encounters while sleepwalking. All the while, the sleepwalker appears normal but is actually asleep and doesn't recall the previous events the next day. However, for anyone who sleepwalks and has psychs in their house at the time, the possibility of eating shrooms or dropping acid while sleepwalking would be something to be a bit concerned about 8( This has me wondering, let's say the sleepwalker were to pick up a tab of acid or a psilocybin mushroom and ingest it while sleepwalking.
I know that during sleep, levels of serotonin are low and the receptors are in the process of replenishing themselves for the next day. If one took psychedelics while they were sleepwalking (thus technically asleep), clearly it would alter that process drastically. The way I see it, I see a few possibilities. Perhaps, the dreaming/sleeping sleepwalker would be in a state that is different from wakefulness and the psychedelics would affect them very differently than taking them while awake would. Perhaps, this would result in the substance having entirely different effects and somehow not waking the sleepwalker but merely altering their dreaming/sleep pattern in some fashion........ perhaps kinda like that LSD dream emulator game lol.
Or the sleepwalker would jolt awake when the psychedelics kicked in, and they'd notice everything was off...... probably realize what they did while sleepwalking and check their stash, see that it's missing and likely be quite baffled and likely rather freaked out by what happened. And then just go into a trip from there, though unfortunately this is about the worst set and setting that I could imagine for a trip 8( So, thankfully I've never sleepwalked
The other possibility I can see is the sleepwalker entering a bizarre and thankfully incredibly rare (or perhaps even impossible) state of mind where they are still sleepwalking and tripping simultaneously. Perhaps even, confusing the person to the point of them thinking they're in a lucid dream and doing some seriously crazy shit
I do lucid dream often, so I have a good bit of experience with the lucid dreaming state and yeah, this third possibility would probably be the worst of the three 8( So, yeah if hypothetically this is the most likely possibility then yeah, I'm very glad I can never sleepwalk or otherwise I'd probably have to buy a safe to hide my drugs from my sleepwalking self lol ![:\](https://bluelight.org/xf/BL_Images/Orig_Emoji/wrygrin.gif "wry grin :\")
The fourth possibility is that perhaps sleepwalkers simply tend to eat and do random actions (certainly that is what they usually do). And the stories of sleepwalkers getting up, driving miles, and having random sexual encounters are overstated and so rare that they are not worth considering. And the idea of the sleepwalker not taking the usual course of action of just ignoring the "cool piece of paper with that awesome artwork on it" that they found on the dresser is pretty much unheard of. Chances are this whole thing is close to unheard of, but I have sometimes wondered what exactly would happen with the hypothetical sleepwalker if instead of just passing it by, they just kinda thought....... hmm, that piece of paper with a tripped out guy riding a bicycle on it looks pretty cool..... maybe I should just eat it and see what it tastes like 8(. The more I think about it, the more I see that the sleepwalker would not do this, so it's just kind of a hypothetical as far as if they did somehow, for some reason. Since I have heard of sleepwalkers eating raw bacon, perhaps the "piece of the paper with the cool artwork" might be a menu item for a sleepwalker somewhere lol
And what would happen? Because I honestly have no clue 
Since I'm in my 20s, I very, very highly doubt that I'll start either since I've never done it. I do have sleep paralysis often, which is sort of the reverse of sleepwalking (e.g. REM paralysis lasting longer than necessary rather than not long enough, resulting in a sleepwalking episode). At least, this is how I have always heard the sleepwalking phenomena described. I do have a serious fear of it though, especially as I have heard stories of sleepwalkers driving and even having sexual encounters while sleepwalking. All the while, the sleepwalker appears normal but is actually asleep and doesn't recall the previous events the next day. However, for anyone who sleepwalks and has psychs in their house at the time, the possibility of eating shrooms or dropping acid while sleepwalking would be something to be a bit concerned about 8( This has me wondering, let's say the sleepwalker were to pick up a tab of acid or a psilocybin mushroom and ingest it while sleepwalking. I know that during sleep, levels of serotonin are low and the receptors are in the process of replenishing themselves for the next day. If one took psychedelics while they were sleepwalking (thus technically asleep), clearly it would alter that process drastically. The way I see it, I see a few possibilities. Perhaps, the dreaming/sleeping sleepwalker would be in a state that is different from wakefulness and the psychedelics would affect them very differently than taking them while awake would. Perhaps, this would result in the substance having entirely different effects and somehow not waking the sleepwalker but merely altering their dreaming/sleep pattern in some fashion........ perhaps kinda like that LSD dream emulator game lol.
Or the sleepwalker would jolt awake when the psychedelics kicked in, and they'd notice everything was off...... probably realize what they did while sleepwalking and check their stash, see that it's missing and likely be quite baffled and likely rather freaked out by what happened. And then just go into a trip from there, though unfortunately this is about the worst set and setting that I could imagine for a trip 8( So, thankfully I've never sleepwalked
The other possibility I can see is the sleepwalker entering a bizarre and thankfully incredibly rare (or perhaps even impossible) state of mind where they are still sleepwalking and tripping simultaneously. Perhaps even, confusing the person to the point of them thinking they're in a lucid dream and doing some seriously crazy shit
I do lucid dream often, so I have a good bit of experience with the lucid dreaming state and yeah, this third possibility would probably be the worst of the three 8( So, yeah if hypothetically this is the most likely possibility then yeah, I'm very glad I can never sleepwalk or otherwise I'd probably have to buy a safe to hide my drugs from my sleepwalking self lol The fourth possibility is that perhaps sleepwalkers simply tend to eat and do random actions (certainly that is what they usually do). And the stories of sleepwalkers getting up, driving miles, and having random sexual encounters are overstated and so rare that they are not worth considering. And the idea of the sleepwalker not taking the usual course of action of just ignoring the "cool piece of paper with that awesome artwork on it" that they found on the dresser is pretty much unheard of. Chances are this whole thing is close to unheard of, but I have sometimes wondered what exactly would happen with the hypothetical sleepwalker if instead of just passing it by, they just kinda thought....... hmm, that piece of paper with a tripped out guy riding a bicycle on it looks pretty cool..... maybe I should just eat it and see what it tastes like 8(. The more I think about it, the more I see that the sleepwalker would not do this, so it's just kind of a hypothetical as far as if they did somehow, for some reason. Since I have heard of sleepwalkers eating raw bacon, perhaps the "piece of the paper with the cool artwork" might be a menu item for a sleepwalker somewhere lol
And what would happen? Because I honestly have no clue 
But at the time, I just didn't feel like getting up. Once I really started tripping though, I woke right up. So, I would imagine that the same would be the case if one were to sleepwalk and dose during their sleepwalking. It's unlikely that the sleepwalker would remain "asleep" after they dosed for very long.