Medical device, namely, a device for measuring body position during sleep; Medical devices for treating sleep disorders; Medical apparatus for detecting rapid eye movement and other physiological conditions in a sleeping person indicative of dreaming and for inducing partial awakening so as to cause a state of lucid dreaming; Health monitoring devices consisting of blood pressure monitors, thermometers and pedometers; Medical apparatus and instruments for monitoring specify physical condition being monitored, e.g., vital signs, blood pressure, heart rate, etc.; Medical apparatus and instruments for monitoring vital signs, blood properties and respiratory events; Medical apparatus, namely, respiratory equipment and monitors therefor; Medical apparatus for monitoring vital signs of patients; Medical devices for monitoring blood oxygen saturation, blood gas concentrations, vital signs and respiratory events, and recorded software for recording, processing and transmitting medical data, for use therewith, sold as a unit; Patient medical monitors for monitoring specify physical condition being monitored, e.g., blood pressure, heart rate, lung function, etc.; Medical device, namely, a device for measuring leg movements during sleep; Patient monitoring sensors and alarms