laptop keeps going to sleep while in use

Computer goes to sleep or hibernate due to inactivity, but won’t wake up by any keyboard key press or mouse clicks even when both are set to wake computer inside control panel.Not able to turn ON after shutting down or sleeping laptop.Laptop won’t go to sleep, if it does then Power still remain ON and FAN & CPU would be working.Samsung Laptop with Nvidia or ATI Graphics Card.Users who’re facing this issue have laptops of:

These situation, users never faced before in “Windows 8.1”. Surface Pro users are also facing similar issues, that only screen turn off, but board light, fan etch would be still working and also Surface Pro getting hot sometimes during sleep mode. Not just laptops, even hybrid of Laptop and Tablet i.e. But there won’t be anything on the screen and you’ll not be able to wake it back from sleep. Many users who are using Laptops from different manufacturers are facing issues of either laptop won’t go to sleep, if it does then Power still remain ON and even they’ll find that CPU and fan are working as well.

Laptop keeps going to sleep while in use