Improve the quality of your sleep with this 4-hour brainwave entrainment audio, which uses pure binaural beats to entrain your mind to a slow wave delta state. Slow wave sleep is important for cultivating peak performance, both physical and mental.
“Slow wave sleep is the constructive phase of sleep for recuperation of the mind-body system in which it rebuilds itself after each day. Substances that have been ingested into the body while an organism is awake are synthesized into complex proteins of living tissue. Growth hormones are also secreted to facilitate the healing of muscles as well as repairing damage to any tissues. Lastly, glial cells within the brain are restored with sugars to provide energy for the brain.”
http://www.hgi.org.uk/archive/sleepanddream1.htm#.U2kpm8fhjys
Listen with headphones and set the volume to a discreet level.