Done all driver updates. It seems to have worked, it looks like all sleep / hibernate modes are now working. 
Hello, I just bought a Dell for the first time under a year ago. The problem I having is when I close the laptop lid for the night or whatever it doesn't turn off. For example I will have a full battery and the laptop will be unplugged. By the morning the laptop is completely dead and has an awful time booting up.  I have had it in sleep mode when the lid is closed and hibernate mode when the lid is closed. Still it continues to run until it dies. Any ideas on what is keeping it running and how to fix it?   Thanks
XPS 15 7590, lid closed, stays on