Hi! I too have an ASUS (UX360UAK) laptop. The power button is annoyingly on the side and rather inconvenient to push down every time I want to wake my laptop, and hitting a keyboard button won't wake it from sleep either.

I've gone into device management-->keyboards-->power management. In device management there are three keyboards: a PC/AT Enhanced PS/2 (101/102-Key), and two HID Keyboard Devices. I'm not sure which one of these is the physical keyboard, but only the only one that has a Power Management tab is one of the HID Keyboard Device's so I'm assuming it's this one. In Power Management, Allow this device to wake the computer is CHECKED/ENABLED but still keyboard won't wake my laptop from sleep.

I've completed the BIOS instruction too, and HID Keyboard Device (001) is listed and enabled (See pic)

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I've also tried entering this command: powercfg -deviceenablewake "HID Keyboard Device (002)" and it doesn't work I get the following:
C:\Users\Mahsa>powercfg -deviceenablewake "HID Keyboard Device (002)"Unable to perform operation. An unexpected error (0x490) has occurred: Element not found.