I remember when we had a dedicated nap room at work, it was really nice and a ten min nap would greatly improve my productivity for the 2nd half of the day.
At one point the new VP of Eng, who was fairly old, joked that "I should be the only one taking naps."
They later put pingpong etc in the room and turned the lights back on.
Stupid.
Anyway always happy to see companies embracing naps. Much better than constant caffeine.