Windows 10 has really amazing features. If you see there in Windows 10 you can't get Hibernate button on power menu. To enable feature of hibernate you have to add it on power menu, so you have to follow certain steps to get hibernate option in power menu.
Hibernation is a feature of an operating system which allows the contents of RAM to be written to the hard disk, before powering off the computer. When the computer is started again, it reloads the content of memory and attempts to restore to the same state as it was before shutdown.