ModsJava
Slumber
Let the server rest while there are no players online. Free Minecraft Java mod for 26.1, 26.1.1, 26.1.2.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
Slumber
Let the server slumber while there are no players online.
This mod allows you to freeze your server when no players are online.
Minecraft versions before 1.20.3 require fabric-carpet.
Commands
/slumber displays current status whether it is in slumber or not, it has the following output.
- Enabled Tells if the mod is enabled or not.
- Frozen Check if the server is frozen
/tick freezealso affect this message.
/slumber true enables freezing.
/slumber false disables freezing.
Configuration file
Located at /config/slumber.properties
The syntax is key=value
value should have type same as describe below.
| Key | Type | Default Value | Description |
|---|---|---|---|
| freeze-delay-seconds | integer | 20 | Time (in seconds) to slumber after no player left in the server |
| debug-messages | boolean | false | Show message in server log when game is in slumber or not |
| config-version | string | 1.4 | Version of the config |
| safe-starting | boolean | true | Freeze when the terrain is loading to prevent redstone machines from breaking |
| sleep_tick_speed | double | 0.0 | Sets the TPS that should be used when the server is in slumber. 0.0 means a complete freeze |
| sleep_autosaving | boolean | false | Enable autosaving when the server is in slumber |
| toggle | boolean | true | Enable slumber by default |
Supported Platforms (As of v2.0.0)
- Fabric/Quilt (1.14.3 - 26.2)
- Forge (26.2 - )
- NeoForge (26.2 - )
- PaperMC/Spigot/Folia (26.2 - )
- Sponge (26.2 - )
Installation
Fabric, Quilt, Forge, NeoForge
Simply put the mod in the mods folder
Sponge
Simply put the plugin in the plugins folder
Spigot/PaperMC
- Install the Ignite Mixin loader
- Run the ignite jar alongside the paper/spigot jar
- Put the mod in the mods folder and restart
Folia
- Install the Ignite Mixin loader
- Rename the Folia jar to "paper.jar". Alternatively, you can launch the game with the following JVM args:
-Dignite.locator=paper -Dignite.jar=./folia.jar - Run the ignite jar alongside the folia jar
- Put the mod in the mods folder and restart
Verified by MCModsHub
- Ships as Slumber-2.0.0.jar — drop this file into the mods folder
- Download size: 20 KB
- Download link checked 27 Aug 2026 — working
These come from our own check of the pack file, not from the source page.