Whether healthy sleep or disturbed sleep - sleep medicine deals with both. First and foremost, of course, sleep physicians are called in to treat disorders. Regular sleep deprivation over a long period of time can have serious mental and physical consequences. Diseases and disorders that affect sleep include sleep apnoea, sleepwalking, sleep-through disorders and "restless legs", i.e. restless legs syndrome.
If sleep disorders or sleep-wake disorders have an impact on the body, specialists are required. If the sleep disorders persist for a long time, an examination is often carried out in a sleep laboratory. Patients then spend a certain amount of time in a clinic. There, doctors monitor their sleep electronically.
Polysomnography records the following activities and then analyzes the data:
- Brain waves
- heart rate
- eye movements
- muscle activity
- Oxygen saturation
In the end, many points provide an overall picture to find the cause of the sleep disorder. Patients with narcolepsy also consult sleep physicians.
In the sleep laboratory, doctors monitor the patient's sleep 
