onPlayerTickEvent

@SubscribeEvent
public void onPlayerTickEvent(TickEvent.PlayerTickEvent event) {
    int sleepTime = event.player.getSleepTimer();
    if(sleepTime == 0)
        return;

    Level level = event.player.getLevel();
    MinecraftServer server = level.getServer();

    if(level.isClientSide())
        return;

    if(server == null) {
        System.err.println("Server was null on SleepingTimeCheckEvent, unable to teleport player");
        return;
    }

    if (sleepTime >= 100) {
        event.player.stopSleeping();

        ServerLevel sleepDimension = server.getLevel(DimensionsInit.SLEEP_DIM_KEY);
        if(sleepDimension == null) {
            System.err.println("Sleep dimension level was null, unable to teleport");
            return;
        }

        System.out.println("Teleporting player...");
        event.player.changeDimension(sleepDimension);
    }
}