Sleep Machines
Digitally recorded white noise CDs, eye shades, aromatherapy, and other items designed to put one to sleep.
http://www.sleepmachines.com
Sleepplace
No more sleepless nights and the Sleep Timer.
http://www.sleepplace.com
Sleepwell Program
Audio tape with guided exercises. Also offers general information, including a section for shift workers.
http://www.sleepwellprogram.com