https://marco.org/2007/07/25/when-i-close-the-lid-on-my-thinkpad-i-can-never
When I close the lid on my Thinkpad, I can never be entirely sure what state I’m going to find the machine in when I come back. It’s supposed to go into sleep mode, but it on occasion goes into either hibernation or total shutdown. And it takes way too long to come back, no matter what state it’s in. This is one of those things you’d think Microsoft and hardware manufacturers would have figured out by now.