Source: Reddit

acpi-wakeup-disable.service

[Unit]
Description=something
 
[Service]
ExecStart=/bin/bash -c "echo EHC1 >> /proc/acpi/wakeup; echo XHC >> /proc/acpi/wakeup"
 
[Install]
WantedBy=multi-user.target

- Place this file in /etc/systemd/system/ - Then do sudo systemctl daemon-reload, - do sudo systemctl start acpi-wakeup-disable - and check on it with systemctl status something, - then enable it so it starts after boot with sudo systemctl enable acpi-wakeup-disable.