What if the Win10 system does not have a sleep function?

Workaround:
1, first search for "Group Policy" in the Cortana search box, press Enter to open "Group Policy Editor";
2, expand & ldquo; Computer Configuration & rdquo ; & mdash; & ldquo; management templates & ldquo; & mdash; & ldquo; system & rdquo; & mdash; & ldquo; power management & ldquo; & mdash; & ldquo; sleep settings & rdquo ;, found on the right side & ldquo; allow standby sleep (S1-S3) (contact "Power supply" & rdquo; and "Allow standby (S1-S3) during sleep (using battery)".

3, double-click, these two options are set to & ldquo; Not Configured & rdquo; can be.

4, set up after the sleep function can be seen in the settings.