She will be missed

Does this mean it comes back from the dead only to be killed by alarm clock each time?

Alas poor slumber, I knew thee well.

I'd always been worried about not getting enough sleep.
But recently, I've discovered I can make it through a day with incredible ease with about 7 hours of sleep and a mug of coffee.
Fantastic. Means I can watch anime on weeknights!

Yes, sleep. I knew and loved him well during our years in highschool. It's a true shame I'll have to get through college without him.

Is sleep a he, she or it?