Power management under i3 on Arch Linux

How to suspend when closing the lid using i3 on (Arch) Linux:

1. sudo pacman -S xfce4-power-manager

2. xfce4-power-manager-settings

   Make the necessary configuration settings, such as suspending upon closing the lid

3. vi .config/i3/config

   Add this at the bottom:

   exec --no-startup-id sleep 3 && xfce4-power-manager