Spusť cmd a zadej tam toto:

powercfg /a

Co tam máš?
Já myslím nic nenastavoval a mám tam toto:

The following sleep states are available on this system:
    Standby (S3)
    Hibernate
    Fast Startup

The following sleep states are not available on this system:
    Standby (S1)
        The system firmware does not support this standby state.

    Standby (S2)
        The system firmware does not support this standby state.

    Standby (S0 Low Power Idle)
        The system firmware does not support this standby state.

    Hybrid Sleep
        The hypervisor does not support this standby state.

A z režimu spánku se mi probouzí pc prakticky okamžitě.