CurseForge · Minecraft mod
SCP-966, The Sleep Killer
You won't have any sleep anymore if a Sleep Killer sees you as prey
Quick answer
Which SCP-966, The Sleep Killer release should I use?
SCP-966, The Sleep Killer SleepKiller-forge-1.19.2-2.4.jar targets 1.19.2 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is SCP-966, The Sleep Killer required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does SCP-966, The Sleep Killer SleepKiller-forge-1.19.2-2.4.jar need?
SleepKiller-forge-1.19.2-2.4.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add SCP-966, The Sleep Killer without breaking your instance.
Built for SCP-966, The Sleep Killer SleepKiller-forge-1.19.2-2.4.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use SleepKiller-forge-1.19.2-2.4.jar. It targets 1.19.2 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside SleepKiller-forge-1.19.2-2.4.jar. It opens that exact file at the source.
About this project
What does SCP-966, The Sleep Killer add?

The Sleep Killer adds a new terrifying creature. Its history comes from the SCP universe, where it is referred to as SCP-966, also known as The Sleep Killer.
SCP-966 are humanoid creatures that only become visible when a player is nearby. While they are relatively easy to defeat, their true danger lies in the Insomnia Effect they inflict on the player when they targets them. This effect prevents the player from sleeping, causing ongoing damage and constantly hearing the noises made by the Sleep Killers.
● A mod made by Zcoper
● Mod created with MCreator!
● Requires Geckolib:
GeckoLib 1.19.2 Version
GeckoLib 1.19.4 Version
GeckoLib 1.20.1 Version● Visit my Discord Server!
https://discord.gg/akP56NtmVQ
● Important FaQ
► [OLD] What is my console spaming?
Most mobs use special spawning conditions, which means that these mobs can only appear under certain conditions. If the spawning conditions work, this spam is created in the console.
► [OLD] Why can't I summon a mob?
Spawning Conditions determine which conditions must be met in order to spawn certain mobs. Some mobs only spawn above Y level 60. Some below. Most mobs can only spawn in the overworld than in other dimensions.
► Why are features missing in different versions?
It is recommended to play the newest versions of higher minecraft versions.
**Not all features of MCreator available or the same in different versions.**For example: Version 1.19.2 doesn't have the feature of shield, better structure generation or custom villagers, but Version 1.20.1 does have them.
► Where does SCP-966 spawn?
SCP-966 can spawn above y 60 in the overworld like a normal monster. There can be multiple instances of SCP-966


SCP-966, Sleep Killer
SCP-966 are skeletal humanoid creatures that remain invisible until a player gets within 10 blocks of them. They are aggressive but are relatively easy to defeat. When SCP-966 attacks, players are inflicted with Slowness for 10 seconds. If SCP-966 targets a player, all players within a 16-block radius will gain the Insomnia effect. With Insomnia, you’re unable to sleep, leaving you vulnerable during the night. This effect only disappears once the SCP-966 that caused it is dead or stopped seing an player as target.
● Mods Origins:
https://scp-wiki.wikidot.com/scp-966
● Config File not inculed.
● You are all allowed to use this mod in your modpacks!
● Do not port my mods without permission!
● Check out my other Mods:
https://www.curseforge.com/members/zcoperfy/projects
Project description from CurseForge.
Pick your setup
SCP-966, The Sleep Killer by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.19.4
1 loader build1.19.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
SCP-966, The Sleep Killer versions and loaders
SleepKiller-forge-1.19.2-2.4.jar
4 Apr 2026
SleepKiller-forge-1.19.4-2.4.jar
4 Apr 2026
SleepKiller-forge-1.20.1-2.4.jar
4 Apr 2026
SleepKiller-forge-1.19.2-2.3.jar
8 Nov 2025
SleepKiller-forge-1.19.4-2.3.jar
8 Nov 2025
SleepKiller-forge-1.20.1-2.3.jar
8 Nov 2025
SleepKiller-forge-1.19.2-2.2.jar
21 Jun 2025
SleepKiller-forge-1.19.4-2.2.jar
21 Jun 2025
SleepKiller-forge-1.20.1-2.2.jar
21 Jun 2025
SleepKiller-forge-1.19.4-2.1.jar
21 May 2025
SleepKiller-forge-1.20.1-2.1.jar
21 May 2025
SleepKiller-forge-1.19.2-2.1.jar
21 May 2025
Looking for an older file? The official CurseForge project page is in Resources.