Log player sleeping in bed

gistfile1.txt

import org.bukkit.event.Listener;
import org.bukkit.plugin.java.JavaPlugin;

public class BedLogger extends JavaPlugin implements Listener {
    public void onEnable() {
        getServer().getPluginManager().registerEvents(this,  this);
    }

    @EventHandler
    public void onBed(PlayerBedEnterEvent event) {
        getLogger().info("Player "+event.getPlayer().getName()+" slept in bed at location "+event.getBed().getLocation());
    }
}