Sleep

http://www.apa.org/topics/sleep/why.aspx
http://www.health.harvard.edu/press_releases/importance_of_sleep_and_health
http://blogs.hbr.org/schwartz/2011/03/sleep-is-more-important-than-f.html

Sleep Apnea
http://www.nhlbi.nih.gov/health/health-topics/topics/sleepapnea/x
http://en.wikipedia.org/wiki/Sleep_apnea
http://www.mayoclinic.com/health/sleep-apnea/DS00148
http://www.youtube.com/watch?v=wk8c4rNrQ-A&feature=em-subs_digest-vrecs

TED Talk
http://www.ted.com/talks/arianna_huffington_how_to_succeed_get_more_sleep.html

Videos
http://www.youtube.com/watch?v=Wm-TZ-dO_rQ
http://www.youtube.com/watch?v=meXaCrj79kg&feature=related
http://www.youtube.com/watch?v=m202Z6aTl_Y&feature=related
http://www.youtube.com/watch?v=zIJysIYGbLc&feature=related
http://www.youtube.com/watch?v=TMztpayvWOQ&feature=related
http://guyaneseonline.wordpress.com/2013/08/19/russell-foster-why-do-we-sleep-video/#comment-33637

CPAP
http://www.youtube.com/watch?v=OdEYiLeZ1EE&feature=related
http://www.youtube.com/watch?v=OgGRb8D7bFo&feature=fvwrel

Yoga
http://www.youtube.com/watch?v=g42ooYpPF7Q&feature=related