Super Sleep helps you produce the natural brain-wave patterns of the Delta sleep state and enjoy the benefits of totally refreshing, deeply restorative sleep. Use ear buds, headphones or speakers placed on either side of the bed. Play Super Sleep continuously to support uninterrupted sleep and get a good night’s rest. (Mind Food – Nonverbal) 45 minutes. Learn more about Hemi-Sync, and get your FAQ answered. Learn more about Hemi-Sync creator Robert Monroe. Do not listen to Hemi-Sync while driving or operating heavy equipment, or with other devices that may influence brainwave activity. If you have a tendency towards seizures, auditory disorders, or adverse mental condition(s), do not listen to Hemi-Sync without first consulting your physician. Do not use Hemi-Sync with Dolby or other noise-reduction systems, as doing so will diminish the effectiveness of the Hemi-Sync signals.