System goes to sleep ... 😴

[fengints]

Is your feature request related to a problem? Please describe.
Gnome in gui installer has 15 min sleep enter time, it is default gnome's settings.
my last installation took ~2h to complete, 800kib/s,
i left using install button, when i came first time It turned out that computer went to sleep.

Describe the solution you'd like
increase time before computer enters sleep state

Describe alternatives you've considered
remove it either

Additional context