Can meditation replace sleep?

Meditation's brainwave re-balancing not only deepens the sleep state, but also adds another round of restorative and rejuvenative battery recharge when "in session." Meditators sleep so deeply and "power-up" so efficently while in session, in fact, that many report needing fewer hours of nightly shuteye. If quality beats qauntity, then sleep is no exception.

http://www.topketodietreviews.com/sleep-wave-review/