Improve your mental well-being with BetterHelp (Sponsored)Connect
ScienceOur AppThemesEncyclopediaDreamsBlog
Try now
Hypnagogic Hallucinations: What Are They
Denys Chumak

Denys Chumak

23 Oct 2024

Hypnagogic Hallucinations: What Are They

Have you ever been lying in bed, almost drifting off to sleep, when suddenly you see something strange? Maybe you hear a voice or even feel like something is touching you—something that isn’t really there? If you’ve had experiences like this, you might have encountered hypnagogic hallucinations. It can be unsettling and even scary, but these experiences are more common than you might think.

So, let me take you through what I discovered when I started asking myself, why do I have hypnagogic hallucinations?

Key Takeaways:

  • Hypnagogic hallucinations happen when you’re falling asleep, and they’re very common, affecting up to 70% of people at least once in their life.
  • They can be visual, somatic (feeling something), or auditory (hearing something), and are often harmless.
  • In some cases, they’re associated with sleep disorders like narcolepsy or sleep paralysis.
  • The experience can be scary, but understanding it can help ease the fear and anxiety.

What Are Hypnagogic Hallucinations?

I first stumbled upon the term hypnagogic hallucinations when I started noticing weird things happening as I was trying to fall asleep. It turns out that these are basically hallucinations that occur as you transition from wakefulness to sleep—right at that moment when your brain is starting to wind down.

It's not something that just happens in people with certain conditions; hypnagogic hallucinations can happen to anyone. In fact, up to 70% of people experience them at least once.

Now, hallucinations are often defined as false perceptions of objects or events involving one of our senses—sight, sound, smell, touch, or taste. So, if you've ever heard voices or seen things that aren't actually there while trying to fall asleep, you've likely experienced hypnagogic hallucinations.

Different Types of Hypnagogic Hallucinations

I never really thought about how weird my mind could be when I was close to sleep, but after some research, I learned that hypnagogic hallucinations can come in several different forms. Let me share the most common ones:

Visual Hallucinations

About 86% of hypnagogic hallucinations are visual. That means, as you’re about to doze off, you might see things like flashing lights, geometric patterns, or even vivid images like animals or faces. Imagine you’re staring into a kaleidoscope—shapes and colors that constantly shift and change.

That was something I experienced a lot before I understood what was happening. It can be a little jarring, especially if you don’t know why you’re seeing it. Sometimes, they’re not even shapes but actual things, like figures of people or animals.

Somatic Hallucinations

Somatic hypnagogic hallucinations involve physical sensations. They occur in about 25% to 44% of cases. Have you ever felt like you were floating, falling, or even like someone was in the room with you, even though you knew no one was there?

I once felt like I was weightless like I was drifting away from my body. It was intense! These can also be sensations of pressure or tightness, such as something pressing against you, which can make falling asleep feel a little like a mini nightmare.

Auditory Hallucinations

About 8% to 34% of hypnagogic hallucinations are auditory. That means you may hear sounds or voices that aren’t real. The sounds can range from hearing someone’s name being called to the sound of random noises, like footsteps or animal calls.

These auditory hallucinations can sometimes be unsettling because they can sound so real. Imagine hearing someone say your name, only to wake up and realize there’s no one around. That’s happened to me, and it’s enough to make you question your surroundings.

Why Do I Have Hypnagogic Hallucinations?

It’s natural to ask, "Why do I have hypnagogic hallucinations?" when it happens. I did the same. Here's what I found: what causes hypnagogic hallucinations is still being studied, but researchers have linked them to the process of falling asleep. As you transition between wakefulness and sleep, your brain waves slow down, and your senses can get all mixed up.

For instance, sleep paralysis is closely related to hypnagogic hallucinations. This can happen when the body is temporarily paralyzed as it enters or leaves REM sleep. You’re awake, but your body is still locked in sleep mode, so it can be a terrifying experience if you start to feel a presence or hear something while you can't move. In fact, sleep paralysis can make hypnagogic hallucinations even scarier.

Another reason for these hallucinations is simply stress or sleep deprivation. I found out that if you don’t get enough sleep, your body may get confused during the sleep cycle, causing more intense or frequent hypnagogic hallucinations. It’s also more common in people with narcolepsy or other sleep disorders, but it can happen to anyone.

What Causes Hypnagogic Hallucinations?

The question of what causes hypnagogic hallucinations also relates to how our brain works as we transition into sleep. The brain is still active, and it can sometimes mix dreams with reality. It's like your mind hasn't quite made the switch from conscious to unconscious.

One study mentioned that 37% of people experience these kinds of hallucinations, even if they don't have any underlying conditions. Sleep paralysis often occurs at the same time, making the experience even more intense.

Interestingly, people with schizophrenia or other mental health disorders can experience hallucinations at any time, including as they fall asleep. However, hypnagogic hallucinations are typically less distressing than the ones caused by these conditions because you know you’re in that in-between sleep state, and it’s easier to understand that they’re not real.

Scary Hypnagogic Hallucinations

Let me be honest—when scary hypnagogic hallucinations happen, they can really shake you up. I've had moments where I’ve woken up in the middle of the night, feeling like something was standing at the foot of my bed, and I couldn’t move. It turns out this is pretty common when sleep paralysis is involved with hypnagogic hallucinations.

The thing that makes them so scary is the sense of fear you experience during the episode. Your mind can make you believe that you're in danger, even though you’re perfectly safe.

Frequent Hypnagogic Hallucinations

Some people have frequent hypnagogic hallucinations, which can feel like an ongoing problem. If this happens to you often, it might be worth considering your sleep hygiene, stress levels, and overall health.

In my case, I found that when I wasn’t getting enough rest or when I was overly stressed, I was more likely to experience frequent hypnagogic hallucinations.

How to Handle Scary Hypnagogic Hallucinations and Sleep Paralysis

If you’re dealing with scary hypnagogic hallucinations or sleep paralysis, the best thing you can do is try to stay calm. I know it is easier said than done, but it's key to remind yourself that these are temporary and usually not dangerous.

Understanding that these experiences are linked to sleep patterns can help reduce anxiety. If you continue to experience them frequently, it’s always a good idea to talk to a healthcare professional.

Bottomline

Hypnagogic hallucinations can feel scary, but they’re a normal part of how the brain works when falling asleep. Understanding them can help you feel less afraid and sleep better.

Want to explore your dreams and understand your sleep better? Download DreamApp today. It helps you track your sleep, learn what your dreams mean, and discover more about your mind—all in one easy app. Sleep smarter and dream better with DreamApp.

FAQs

1. Can hypnagogic hallucinations be a sign of a serious condition?

Most of the time, hypnagogic hallucinations are harmless and just part of the sleep process. However, if they happen frequently or are accompanied by other unusual symptoms, it might be worth consulting a doctor.

2. How can I stop hypnagogic hallucinations?

Improving sleep hygiene, reducing stress, and getting enough rest can help reduce the frequency of hypnagogic hallucinations. Also, practicing relaxation techniques before bed may help.

3. Is sleep paralysis always linked to hypnagogic hallucinations?

No, sleep paralysis can occur on its own, but it often happens alongside hypnagogic hallucinations. Both are linked to disruptions in the sleep cycle.

4. Are hypnagogic hallucinations related to narcolepsy?

They can be, as narcolepsy is a sleep disorder where people experience disrupted sleep patterns. However, hypnagogic hallucinations can also occur in people without narcolepsy.

5. Are certain people more likely to experience hypnagogic hallucinations?

Yes, people with sleep disorders like narcolepsy, those under stress, or people who don’t get enough sleep may be more prone to experiencing them.

6. Can medications cause hypnagogic hallucinations?

Certain medications, especially those that affect the brain or sleep cycle, may trigger hypnagogic hallucinations. Always consult with a doctor if you suspect a medication is causing them.

What Does it Mean to Dream About Tornado

Previous blog

What Does it Mean to Dream About Tornado

What Does it Mean to See Lizard in Dream

Next blog

What Does it Mean to See Lizard in Dream

Did you have an unusual dream with this symbol?

Let's analyze this dream with our expert!

At least five words, please.

Lock

Your dreams are completely private

Take control of your dream emotions in the free mobile app

App StoreGoogle Play
Home Description

The most recent users' dreams

Go to the user dreams page

22 Jun 2026

dream-of-vr-worlds-and-zombies
Zombie
Argument
Family
Game
Lake
Mall

Dream

The first part of my dream, I was in a VR world within a VR world within a VR world. In one world I fell asleep in VR and in the VR game there was a huge mansion. I unlocked the whole house but I wasn't done the game completely but then I had found out that people's information was getting linked through the game so I had to restart the game when I was in the lobby which was in the mansion and I was with a bunch of people that may or may not be in NPCs. I made a friend there named Anna but I was trying to figure out whether or not she was a person or if she was actually a npc I introduced myself but for some reason she was convinced that I was an NPC so I follow her and I say try to convince her im not. Before the game starts. For some reason my coworker was there Susan saying she had the information leaked that she played the game and had to restart. I take off the VR headset because I'm starting to feel disoriented because I fell asleep in the game. So I got up out of the room into the hallways and it seemed almost like a maze. There were so many different doors and rooms I'd never seen before with a bunch of people I don't know but around my age. I was going around each rooms. Accidentally going into rooms with people that are sleeping and disturbing them. Then there was a room full of people my age and I was talking to some of them. Then I was back in the VR game and there was a bunch of people in the lobby and I was trying to add them but I couldn't remember who was who. I loaded into the game in a room with two beds. I loaded into the game and I was in a co-op with Isabel. Me and Isabel arent close but it was interesting that she loaded it to the same game. The game starts when we start customizing our characters. We stand in the mirror and I start to change my face. Pet some boy, me and a bunch of other players were running around trying to grab outfits quickly cuz there was dress and stuff everywhere. I grabbed a few things but I wasn't sure which one I wanted and I wasn't changed into it yet and basically the time was up so I didn't get to choose. Then some handsome guy comes in shirtless and tries to seduce Izzy and then she gives him a glass of water. Then it's my turn he comes over I try to avoid him but he kisses me and I drop a glass of juice I was supposed to give him then he turns scary and a bunch of girls hide him in the closet while we get out. I lead Izzy down the dark hallway with a flashlight every now and then there would be a zombie but when we flash a light at it, it's human again. Eventually we made it to the safe spot in the mall. And then I explained the game to her. The rest of the game is a giant mall or a resort or something like that. Once you get to certain points in the mall, you can secure them with lights and then you're safe. During the day there's you know a bunch of people everywhere and they're all just enjoying them all. Some of them are tourists like me and my family and Izzy and then some of them were here before. The people that are here before we're exposed to some kind of chemical from an accident. So basically all the people that were here before they turn into zombies at night at 8:00 and then during the day they're human again. And to survive the night you have to weave through these zombies with a flashlight and when it use the flashlight on the zombies to make them people again whilst the light is on them. It's daytime again and I'm trying to warn everybody to hide or run before it gets dark at 8:00. Once it starts to get dark people start turning into zombies and I try to take my family into a safe area. Eventually we try to get away and fight back but sometimes we die and then come back again. One time I managed to get a whole group of people safe. I try my best to guide people through the game and explain how it works, but sometimes I don't listen. I was with my mom and we got separated with my dad. She was really worried about him but I said that she can't worry about it because there's nothing we can do. Then everything started turning into zombies again as the sun goes down so I jumped into the lake with her and I said just me this will be better. I knew we would die in the big thing of water cuz there was a giant monster in there but it was more painless death then getting torn up by zombies again and again. Once I responded I was able to get a little group to safety. Every now and then some scary stuff would happen and I just had to tell them that it was just an Easter egg and nothing would actually happen. Then that's a boy that was like a large cafeteria area with my family and The other side of my family. my cousin was sitting with her mom and was trying to get me to hang up with her and I explained to her that I would be busy with my friend. I explained that she'll understand when she's older. I told her that she should hang out with the grandparents. Grandma was trying to get out of it and being a smirky little b****. Basically I went on a huge rant about how horrible my grandmother is. Chelsea didn't like the grandparents either but I said to her I'm like well. Trust me you got the better treatment out of all of us. Grandma, it's your dad so you'd have a smirk on her face and say wow. I raised my kids with a strict schedule. I looked at her and said oh yeah I guess that read really well now. I said look at how anxious your son is. He's always people of pleasing and trying to do what they want to keep peace. Then my dad jumps in like everything is fine saying that oh I wasn't their fault that he just does it to himself. And I got mad and I said my grandmother He was a child. Just trying to put all the blame and bs on my dad. I ranted about a house today. She treats my dad and my mom and myself and a whole bunch of other stuff. Then I start ranting to my moms mom and sister about all the s***** things that they've done too that I was fed up with wasn't able to talk about. Exactly everyone started to leave except for my mom's mom and sisters. I also yelled at my grandparents then I Said it was their fault that I was on lexapro and that they're the ones that should be paying for my meds. That it was a zombie game again and this puppy was all they're going to be buttoned down cuz it would turn into a zombie so I had to put it down. Then there was a group of survivors and then it turns night. So I had to try to see as many people as I could. I wasn't able to so we all ran to the cars me and my family and my animals survived and a few others as well and they all jumped into cars and just kept driving.

21 Jun 2026

dream-about-cave-monsters-and-necklaces
Fight
Necklace

Dream

I had a dream that there was this strange music coming from a cave, the music after like a minute we finally zoomed into this cave girl smashing open this cave that had a big bone as the door. eventually she had smashed most things up as she almost got eaten by this like bone dinosaur thing in not sure. Turns out there was another guy in there with her who was fighting this monster thing, eventually the girl jumped down from the top of this balcony thing with a glass shard in her hand shaped like a teardrop and slammed it into the guys neck and slit his throat, killing him. after that they turned round and there was this guy who I’m guessing is evil who was hiding in the shadows, I’m guessing this was their big bad enemy. He had his legs crosssed and was like floating on a cloud but his upper torso was visable. He told them like “bravo” and well done and stuff and then challenged them to kill him, she then grabbed something im not sure and killed him, but he came back to life / didn’t die at to begin with. making them aware he has immortality, then they moved to a new room with new stuff in the cave and they kept hitting him with things, finally the girl found a large tile and hit the evil guy over the head with it a bunch but he didn’t even move it just made contact and bounced back every time. suddenly the dream shifted to my house, for some reason they were sat on my upstairs hallway floor near my cupboard with my boiler in. The guy asked me if I have a necklace from my grandma. I said yes and pulled out a ruby necklace and he jumped asking if it was from a lady called dot. I said yes and he said we need to use it. I then get defensive and started telling him the necklace means to much to me and I don’t want it to go missing or broken and eventually he said we needed to make the evil guy eat it, and that the necklace was called “the dotters dot necklace” because it had a red oval gem in the necklace hanging on my neck. and then the dream ended. I feel like I should clarify, I don’t own the necklace at all they showed. however I do have a necklace I haven’t taken off since I got it from a woman who I like to think as my grandma. she passed away just under a week after I got given it. it’s this tear drop necklace with these clear diamond like gems across the surface of it, it also has one big diamond-like gem in the center of the teardrop. this necklace is very sentimental to me and I’m not sure if that’s why a necklace from my grandma and it’s an oval red necklace appeared in the dream, maybe because it links to my real life necklace.

20 Jun 2026

dream-about-protecting-animals-and-snakes
Abroad
Sexual
Snake
Brother
Party
Animal

Dream

I was on some kind of a vacation. It was a group of people and I was in a big house in the middle of like a jungle or something. It was like a Thailand or somewhere and my brother was there and a lot of people were there and I know my brother told me how much he loves me and he's here to protect me and Julie and my dog were there. And it was a lot going on. I saw some people in the jungle, they were not treating animals right, so I told them they cannot do that, and if I caught them one more time, they're going to get punishment. And I started to protect the animals in the jungle. And then it was like a big party, and all of a sudden I saw a very long snake, I saw two snakes, one snake was crawling inside the house on the wall, and he disappeared, and the other snake was crawling on the floor, and it was a very skinny and very, very long snake, and I wasn't afraid of him, I wanted to protect the people in the house, so I picked him up and I threw him out, and I'd never done that, but in the dream I did, and there was a lot of sexual energy in the dream, there were a lot of people making out in the dream. And my dog Julia was with me too, she was very happy. And then I told people about the snakes, and they didn't believe me that there were snakes, and I said, no, there are snakes here, we have to be careful, and people didn't believe me.

© 2024 Dreamapp Ltd

Follow us on Social:

Privacy PolicyEULADo not sell my personal information
Contact Us
Dream App

Dream App

Free dream interpretations

1213 Five Star Reviews

(1,213)

Install