Set Macbook "deep sleep" threshold between Apple's default time (1 hr 10 mins) and a longer time (3 hrs)

sleep-delay

#!/bin/bash

script_name=`basename $0`

function show_usage {
  echo "Sets the time delay before the Mac goes into 'deep sleep'."
  echo "  Usage: $script_name time"
  echo "  Where time is 'default' or 'long'."
  exit 1
}


# check number of arguments
if [[ $# != 1 ]]; then
  show_usage
fi

if [[ "$1" == "default" ]]; then
  delay_seconds=4200
fi

if [[ "$1" == "long" ]]; then
  delay_seconds=10800
fi

# invalid argument
if [[ "$delay_seconds" == "" ]]; then
  show_usage
fi

pmset -a standbydelay $delay_seconds

if [[ $? == 0 ]]; then
    echo "Set sleep delay to $((delay_seconds/(60*60)))h (${delay_seconds}s)"
else
    echo "Unable to set sleep delay"
fi

This script is a quick and easy way to alter the "deep sleep" threshold (i.e. the time before Macbooks enter a hibernate to disk state). The problem with deep sleep is that it is damn slow to wake up (particularly with 16GB of RAM).

Set whatever "long" delay you want. I tried 24 hours and the battery drained too fast, so I'm currently trying 3 hours as a compromise between Apple's rather short 1:10 and the battery draining 24:00.

Pop it in $HOME/bin (assuming you have this on your $PATH) and use "sudo" to run it (pmset requires this) -- e.g. "sudo sleep-delay long".