Awake PC from sleep using only one button?

I have a Thinkpad X1 tablet running Ubuntu 20.04 LTS. The keyboard is pretty flexible and the keys get easily pressed when the laptop is closed. When the PC is in my backpack it presses keys and drains it for battery.

I would like a way of the PC to wake from sleep ONLY when the power button is pressed. Is there any way to do this? - e.g. disabling "wake when lid opens", keyboard presses and touchpad movements/clicks.

Any help is much appreciated, thanks.

Summary; I would like my PC to wake from sleep by nothing but the POWER BUTTON.

I found it out.

For me the best solution was disabling XHC in /proc/acpi/wakeup. I did this by typing into the terminal: sudo sh -c "echo XHC > /proc/acpi/wakeup" - this disables the keyboard and the touchpad. - When i then suspend my PC I can only wake it up by pressing the power button.

I tried making this automatic when turning on my PC, but after a lot of testing and trying and failing I gave up. I ended up with just a simple script that I found online, that I type into the terminal upon reboot. (Because the previous command get reset to default upon reboot).

The script:

#!/bin/sh
for device in XHC
do
    if grep -q "$device.*enabled" /proc/acpi/wakeup
    then
        echo $device > /proc/acpi/wakeup
    fi
done

I then just run it in the terminal like this: sudo sh Desktop/clickme.sh

I tried putting the script file in /etc/rc.local ... but that did nothing. Also tried making the script a startup application by writing sudo sh Desktop/clickme.sh into the Startup Applications GUI. But that did nothing. - If anyone sees an error I made in my troubleshooting... please tell me, I would love to forget about the script upon every reboot.

My top sources for this problem were these: Desktop wakes from suspend at random (14.04) and Disable USB keyboard wakeup