SmartPower is a Windows application that saves energy (and money) by hibernating and resuming your PC according to configurable rules. It is a freeware system hibernation application that's user friendly, light on system resources, straightforward and well-designed.
Here are some screenshots to illustrate the features and user interface of this application:
RegCool
SteelSeries GG
XBox One Controller Battery Indicator
System Information Tool
VirtualBox