What’s Really Going On in the Brain
You’ve probably heard stories about people who get up in the middle of the night, walk around the house, maybe even open the fridge or unlock the front door — all while completely asleep.
It sounds like something out of a movie, but sleepwalking is very real. And while it can be funny (or freaky) to witness, it’s actually a fascinating window into how our brains work when we sleep.
What Is Sleepwalking, Exactly?
Sleepwalking — or somnambulism — is a type of sleep disorder that happens during deep sleep (specifically, the NREM or "non-rapid eye movement" stage).
It usually occurs in the first third of the night, when your body is most relaxed and your brain is in its slowest, deepest sleep mode.
Here’s the strange part:
The body is active, but the brain is mostly “offline” — especially the parts responsible for awareness and decision-making.
That’s why sleepwalkers can do things like sit up, walk, or mumble words… but have zero memory of it the next morning.
Why Does It Happen?
There’s no single cause, but several factors can make someone more likely to sleepwalk:
- Genetics – It often runs in families.
- Sleep deprivation – The more tired you are, the deeper your sleep stages — which increases the chance of sleepwalking.
- Stress or anxiety – Can disrupt sleep patterns and trigger episodes.
- Fever – Especially in kids, this can mess with sleep cycles.
- Certain medications – Especially those that affect the brain or sleep.
- Sleep disorders – Like sleep apnea or restless leg syndrome.
It’s much more common in children than adults, and most kids grow out of it. For adults, though, it may be linked to underlying health issues or high stress levels.
What Does a Sleepwalker Look Like?
Not like in the movies — they’re usually not “zombie-like” or roaming dramatically.
Instead, a sleepwalker might:
- Sit up suddenly in bed
- Walk around with a blank expression
- Talk or mumble
- Perform simple tasks (like going to the bathroom or opening a door)
Their eyes are often open, but unfocused. And while they may look “awake,” they’re not fully conscious.
The golden rule: Don’t try to wake them suddenly. It can be disorienting and even scary for them. Instead, gently guide them back to bed if it’s safe.
Is It Dangerous?
It can be — depending on what the person does during an episode.
Most sleepwalking episodes are harmless. But in some cases, people have:
- Tripped or fallen down stairs
- Opened doors and walked outside
- Tried to drive (yes, seriously)
- Injured themselves without realizing it
That’s why it’s important to keep the sleeping environment safe — no sharp objects, locked doors/windows, and clear pathways.
Can It Be Treated?
There’s no magic pill, but good sleep hygiene can help reduce episodes:
- Stick to a consistent sleep schedule
- Reduce stress before bed (no screens, no caffeine)
- Avoid alcohol or heavy meals late at night
- Get enough rest so your brain isn’t overtired
If it’s frequent or dangerous, a doctor or sleep specialist may recommend tests or therapy.
Final Thought
Sleepwalking reminds us that sleep isn’t just “off mode” — it’s a complex, active process in the brain.
And sometimes, our brains blur the line between being asleep and awake.
So if you’ve ever found your sibling wandering the hallway at 2 a.m. or woken up in a different room than where you fell asleep — your brain might just be telling a story of its own.
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