PS4 turns itself off from rest mode

[englishphoenix]

I have my ps4 set to turn off after 2 hours as I like to fall asleep with a movie on, however recently when I've gone to turn it on in the morning the PS4 is totally off. When I turn it back on, the system tells me that it wasn't turned off properly.

I'm a little concerned and wondering if there is something I can do to stop it from doing this?

Many thanks!