diff --git a/.config/i3/config b/.config/i3/config
index 6f75d24..2352b43 100644
--- a/.config/i3/config
+++ b/.config/i3/config
@@ -186,3 +186,7 @@ bar {
 
 # Set background image
 exec --no-startup-id feh --bg-scale $HOME/.wallpapers/simplistic-mountain.jpg
+
+# Lock after 5 minutes
+exec --no-startup-id xset s 300 600
+xss-lock $HOME/.config/i3/scripts/lock.sh
diff --git a/.config/i3/scripts/lock.sh b/.config/i3/scripts/lock.sh
new file mode 100755
index 0000000..c8bba38
--- /dev/null
+++ b/.config/i3/scripts/lock.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+revert() {
+	xset dpms 0 0 0
+}
+
+trap revert HUP INT TERM
+xset +dpms dpms 15 15 15
+i3lock -n -e -i $HOME/.wallpapers/blue-whale.png
+revert