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Sleep Disorders Information for Patients
Part of the purpose of this website is to help educate our patients and the general public on the issues regarding healthy sleep. Please explore our links below for more information on how you can improve your sleep and your health.
If you have scheduled an appointment with CSMA and need to cancel or reschedule, please use the form below.
Assistance for Doctors and Patients Previously Associated with Sadler Clinic:
In 1999, Jerald Simmons, MD was recruited from UCLA to establish the Sadler Clinic Sleep Disorders Center, a Center of Excellence for sleep medicine in Montgomery County, Texas. Under his leadership, the clinic grew rapidly—from just over 30 physicians to more than 100—serving patients throughout the Greater Houston area.
In 2001, Dr. Simmons founded Rest Technologies, a company focused on advancing sleep diagnostics and technology. By 2006, he launched Comprehensive Sleep Medicine Associates (CSMA), his own private practice dedicated to providing advanced care in sleep, neurological, and neurophysiological medicine.
When the Sadler Clinic closed its doors in 2012 after 54 years of service, Dr. Simmons seamlessly transitioned his sleep program and patient care into CSMA, continuing his mission to improve the lives of those affected by sleep disorders and neurological conditions.
Ask the Experts:
Questions and Answers About Sleep

Common Sleep Questions
Jerald H Simmons MD answers common questions from patients with sleep related problems.
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Sleep Hygiene Recommendations
Learn more about healthy sleep practices and how you can improve your sleep habits.
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