Guys, you both are right in a way.
It is hard to find info about changing sleep time. On the other side there is info in the manual, that it is possible to use
Never in sleep mode. So,
pvdas might solve the problem by reading the manual.
But OK, our tools are becoming quite complex. Not everyone is IT specialist and not beeing a good IT specialist does not necesarily mean not beeing a good teacher.
The most 'stupid' question is the question not being asked (because of hesitation)....
As a software dedeloper I realized users of my software do not understand it and do not use many of features. I decided instead of improving programs by adding new features to improve it by removing not/least used features. And it works. Optimal simplicity rules.