A Pennsylvania doctor is selling a DVD on “Restless Leg Relief” on Amazon.com, which includes stretches for the sleep disorder and comes with a 90-day money back guarantee.

Stanley Lang says in a release: “I would teach a patient a set of stretches or exercise to help with a problem–restless leg syndrome or inflexibility or some such issue–and when I’d get them back in my office a month later, they were doing them all wrong. I’d re-teach them, and the next time I saw them they’d be doing it incorrectly again. So I set about to create a DVD that would guide them through the process and remind them of the ‘dos and don’ts’ to get the best success from the program.”