About the Game
'While Sleeping' is a first-person horror game about experiencing sleep paralysis.
You are sleeping to go to work tomorrow, and you get sleep paralysis.
Your body is paralyzed and you can't move, and you can't do anything except look around or close your eyes and open them.
You have to survive until daybreak by experiencing ghosts and creepy phenomena that appear around you while you are sleeping paralyzed.
Playtime: Average 15 ~ 30 minutes.
Caution: To create a scary atmosphere, some of the details may be exaggerated compared to actual sleep paralysis.
Sleep Paralysis
You can't move your body. You can only open or close your eyes.
Creepy Phenomenon
Creepy phenomena continue to appear as time passes.
Don't get caught by ghosts
Each ghost that appears has a different way you should act.
Survive until the sun rises
You have to survive until you get out of sleep paralysis.
Screenshots
7 images
Version Information
Steam Patch Notes
Official update history
Fixed a bug where the game would not progress after the ghost appeared in front of the door and the door opened.
(The game previously required the player to be looking at the ghost that appears in front of the door for the sequence to continue. Due to a bug in that requirement, we have removed the check and changed the behavior so the game now progresses automatically after a short delay.)
If you have any bug reports or comments, please post them on the Community Hub and we will review and respond.
Thank you.
- Fixed an issue where ghosts would not enter the room as time passed.
If you have any bug reports or comments, please post them on the Community Hub and we will review and respond.
Thank you.
- Changed the game to proceed automatically if the player does not take any action after a ghost enters the room.
If you have any bug reports or comments, please post them on the Community Hub and we will review and respond.
Thank you.
Current Release
Build 20675089
Uploaded Oct 16, 2026
System Requirements
How to Install
WhileSleeping.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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Download While Sleeping for PC with a direct link or via torrent. Get the full version of While Sleeping for free. While Sleeping is a Action released by Sangwoon Jin.