HopperSleeper
Stops idle hoppers from polling every tick by sleeping them when empty and waking them instantly on real item or inventory changes, reducing MSPT without…
⬇ Download on ModrinthHopperSleeper
HopperSleeper reduces server tick load by stopping idle hoppers from polling every tick.
When a hopper is empty and has nothing to pull, it is put to sleep.
The hopper is woken instantly when a real vanilla event occurs, such as:
- an item entity entering the hopper area
- a container above changing contents
- items being inserted into the hopper
This preserves vanilla behavior while removing unnecessary block entity work.
Improvements
- Lower MSPT in hopper-heavy worlds
- Reduced tick-time spikes
- More stable TPS on servers and singleplayer
without mod
with mod
Note: tested in a superflat, peaceful difficulty world with over 100 hoppers present.
The mod does not add blocks, items, or configs, and does not modify world data. It only changes how often idle hoppers run their logic.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as hopper_sleeper-1.0.jar — drop this file into the mods folder
- Download size: 13 KB
- Download link checked 10 Sept 2026 — working
These come from our own check of the pack file, not from the source page.