Do naps refresh you or depress you?

[Zobra]

I'm a big fan of naps! Sometimes when I used to work at an office I'd have to go to my car and tilt the seat back so I could close my eyes for a few minutes. It always helped and I could get back to doing my job. I wish this was something that employers would make more accessible for their employees, to provide some area that they can lounge/nap in when needed. I don't always need one, but when I do I can barely keep my eyes open, let alone get work done. But then again I might have mild narcolepsy.