Polysomnograph equipment is a type of medical device used to monitor and diagnose sleep disorders. It is used to measure and record a person's brain waves, breathing, heart rate, and other physiological activities during sleep. This type of equipment is typically used in sleep clinics and hospitals to diagnose and treat sleep disorders such as insomnia, sleep apnea, narcolepsy, and restless leg syndrome.
Polysomnograph equipment is available from a variety of manufacturers, including Philips Respironics, Compumedics, Nihon Kohden, and Cadwell. Prices for these devices range from a few thousand dollars to tens of thousands of dollars depending on the features and capabilities of the device. The cost of the equipment also depends on the type of sleep study being conducted and the number of channels of data being monitored. Generally, the more channels of data being monitored, the more expensive the equipment.