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Slumber

Let the server rest while there are no players online

FabricNeoForgeForgeQuilt
Loaders
FabricNeoForgeForgeQuilt
Downloads on Modrinth
52.3K
Followers on Modrinth
185
versions
15
Updated
June 17, 2026Jun 17
Published
in 2022

At a glance

Runs on Fabric, NeoForge, Forge and Quilt
For Minecraft 1.18.2–26.3
Server only — players don't need to install it
Latest version — mc26.2-2.0.0 from June 17, 2026
License LGPL-3.0-only — free
Where it's needed
In gamenot neededOn serverrequired

Install on the server only; players don't need it

Game versions1.18.2–26.3

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 freeze also affect this message.

/slumber true enables freezing.

/slumber false disables freezing.

Configuration file

Located at <SERVER_DIR>/config/slumber.properties

The syntax is key=value

value should have type same as describe below.

KeyTypeDefault ValueDescription
freeze-delay-secondsinteger20Time (in seconds) to slumber after no player left in the server
debug-messagesbooleanfalseShow message in server log when game is in slumber or not
config-versionstring1.4Version of the config
safe-startingbooleantrueFreeze when the terrain is loading to prevent redstone machines from breaking
sleep_tick_speeddouble0.0Sets the TPS that should be used when the server is in slumber. 0.0 means a complete freeze
sleep_autosavingbooleanfalseEnable autosaving when the server is in slumber
togglebooleantrueEnable 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

  1. Install the Ignite Mixin loader
  2. Run the ignite jar alongside the paper/spigot jar
  3. Put the mod in the mods folder and restart

Folia

  1. Install the Ignite Mixin loader
  2. 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
  3. Run the ignite jar alongside the folia jar
  4. Put the mod in the mods folder and restart

FAQ

How to install Slumber?

Install Fabric for your Minecraft version, download Slumber for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Slumber support?

Slumber has builds for Minecraft 1.18.2–26.3.

Is Slumber needed on the server?

Server only — players don't need to install it

License and source
GNU Lesser General Public License v3.0 onlyfree to use and share; changes to the mod itself must be published under the same license
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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