Napping is a way to perk up employees. Many in safety sensitive industries such as trucking, airlines and law enforcement use napping as a safety strategy.
Allowing pilots a 40- minute nap increases alertness and performance significantly. Many people are sleep deprived.
If you lose sleep, you can degrade human capabilities, as judgment, concentration, reaction time, memory, and mood.
People are already sleeping at work. It is just that the bosses don't know it; or choosing to ignore it. Would you rather have a planned program or have people doing their napping covertly?