A while ago my laptop seemingly crashed and turned itself back on. The screen and fan were off but the light on the power button and my usb cooling pad were both on (my phone charger works too as I found out later). It turned itself off and on a few times before seemingly sticking on. I left it for a couple of hours and turned it back on and it worked fine. Going to sleep is my best bet as it happened when unplugging it and closing it to take it downstairs but earlier I just turned it on and it didn't start properly. It's happened a few more times since and at the time of posting, it's been off from 4pm to now (10pm). I've tried things such as taking the battery out and holding the power button down.