What is a nap pod?

A nap pod is a sleep chair designed like a cocoon to allow office-goers a power nap. Companies are opting for nap pods as part of their furniture, as a cat nap is being increasingly believed to refresh a person and increase productivity. The chairs are designed ergonomically to improve blood supply to the back and head; the cocoon-like structure keeps out office noise. There is also an alarm to wake up the sleeper.