Medical devices for treating sleep disorders; Medical apparatus for use in treating facial muscle pain, jaw muscle tension, temporomandibular joint (TMJ) disorders, Sleep disorders; Electronic nerve stimulators for medical purposes; Electromedical rehabilitative and pain management products for clinical and home use, namely, electrical nerve and muscle stimulators, ultrasonic stimulators, magnet therapy stimulators and laser therapy stimulators; Electrical stimulation apparatus for facial muscles and temporomandibular joint (TMJ) muscles for treatment of temporomandibular joint (TMJ) disorders, pain relief and sleep therapy purposes; Electrotherapy stimulation apparatus comprising electrical nerve and muscle stimulators, electrodes and wearable therapeutic components for use with humans; Medical devices for use in treating jaw muscle tension, temporomandibular joint (TMJ) disorders, Sleep disorders jaw muscle tension, temporomandibular joint (TMJ) disorders and improves sleep qualityfacial muscle pain, jaw muscle tension, temporomandibular joint (TMJ) disorders, Sleep Disorders