DeneDown
Timed Sleep/Hibernate/Shutdown/Restart Tool
Sets your PC to sleep, hibernate, shutdown, or restart based on your time setting. Time may be set between 1 minute to 24 hours (in 1 minute increments). Countdown timer displays time remaining until the action occurs. This is a combined x64/x86 version.
(Note: Tool is idle when time reads 0 hr:0 mins)
Consider Windows 10 has changed the console "shutdown.exe" command to be active only for 30 minutes max. With DeneDown, you can extend your sleep/shutdown/hibernation period much longer...