Example scripts to disable and enable bluetooth when sleeping

block_bluetooth.sh

#!/bin/bash

ID="-1"
ID=$(echo $(rfkill | grep bluetooth) | cut -f1 -d " ")

if [ "$ID" == "-1" ]; then
    exit -1
else
    rfkill block $ID
    rmmod btusb -f
fi

bluetooth-sleep.service

[Unit]
Description=Bluetooth pause resume when sleep
Before=sleep.target
StopWhenUnneeded=yes

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/opt/block_bluetooth.sh
ExecStop=/opt/unblock_bluetooth.sh

[Install]
WantedBy=sleep.target

unblock_bluetooth.sh

#!/bin/bash

ID="-1"
ID=$(echo $(rfkill | grep bluetooth) | cut -f1 -d " ")

if [ "$ID" == "-1" ]; then
    exit -1
else
    modprobe btusb
    rfkill unblock $ID
fi