How to turn off Carrera CU's sleep mode

This is- once again- thanks to some German tinkerers.
For those who don't like it when their CU nods off and has to be turned off/on to recover- here's a way to turn off that behavior:
To toggle the state of the CU sleep mode:
Turn the CU off. Wait 5 seconds. Turn the CU on while holding down the 'Fuel' key.
The CU beeps- if it beeps once, sleep mode is off; if it beeps twice, sleep mode is on.
They also suggest doing a CU reset before you toggle the sleep mode. That is done by pressing the ESC key while turning on the CU.
For those who don't like it when their CU nods off and has to be turned off/on to recover- here's a way to turn off that behavior:
To toggle the state of the CU sleep mode:
Turn the CU off. Wait 5 seconds. Turn the CU on while holding down the 'Fuel' key.
The CU beeps- if it beeps once, sleep mode is off; if it beeps twice, sleep mode is on.
They also suggest doing a CU reset before you toggle the sleep mode. That is done by pressing the ESC key while turning on the CU.