Power management supports suspend. Mentioned ALARM.

usr/local/bin/swayphone_power_presleep

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+pptk-led set red 0
+pptk-led set green 0
+pptk-led set blue 1
+pptk-backlight set 0
+

usr/local/bin/swayphone_power_rest

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+pptk-led set green 1
+pptk-cpu-sleep enable
+pptk-backlight set 0
+
+

usr/local/bin/swayphone_power_sleep

@@ -1,10 +1,6 @@
 #!/bin/bash
 
-pptk-led set red 1
-pptk-cpu-sleep enable
+swayphone_power_presleep
 
-# save current backlight for wakeup
-pptk-backlight get > ~/.backlight
-# shut down backlight
-pptk-backlight set 0
+systemctl suspend
 

usr/local/bin/swayphone_power_wakeup

@@ -1,12 +1,14 @@
 #!/bin/bash
 
 BACKLIGHT_FILE=~/.backlight
-BACKLIGHT_MIN=3
+BACKLIGHT_MIN=10
 
 pptk-led set red 0
+pptk-led set green 0
+pptk-led set blue 0
 pptk-cpu-sleep disable
 
 # restore last saved backlight level
 BACKLIGHT=$((`cat $BACKLIGHT_FILE` >= $BACKLIGHT_MIN ? `cat $BACKLIGHT_FILE` : $BACKLIGHT_MIN))
-pptk-backlight set $BACKLIGHT
+pptk-backlight set_percent $BACKLIGHT