#SleepApnea (https://goo.gl/FoTWLL) is a common cause of fatigue, poor sleep and high blood pressure.
Multiple screening tools are available to identify people who need testing. (http://www.sleepmedicine.com/files/files/StopBang_Questionnaire.pdf). @sleepinfo.
Different companies such as @Novasominc or @VirtuOxSleep can express ship a kit to your home, which allows you to sleep in your own bed while performing the test. When completed, the results are sent back to your physician.
Also, mouthguards or oral splints are available for some folks. Clinics like the Center for Sleep Apnea and TMJ @sleepidaho can assist.