Sleep Stations coming to SFO

PowerNap Sleep Stations are coming to San Francisco International Airport this fall.
Local government approved the trial of these individual sleeping units where a traveler can catch some quick comfy rest rather than resting in standard airport chairs at the gate. The units will cost around $20 for 20 minutes and initially be tried in the International Terminal. It is reported that showers may be optional.

FWIW, the cost of a chair massage at the airport runs about the same price. If you find comfort and relaxation in a massage, that may be the better way to go.