When you shop through retailer links on our site, we may earn affiliate commissions. 100% of the fees we collect are used to support our nonprofit mission. Learn more. Up to 70 million Americans have ...

Polysomnogram (pol-e-SOM-no-gram), or PSG Multiple sleep latency test, or MSLT Maintenance of wakefulness test, or MWT Home-based portable monitor (PM) A PSG usually is done while you stay overnight ...

Paradoxical insomnia: Is the patient sleeping or not? A patient complains that he cannot sleep despite normal polysomnogram results. One poorly understood sleep disorder is paradoxical insomnia, in ...

The polysomnogram is a sleep test usually done overnight in hospital to diagnose sleep disorders. But for people who cannot sleep in a strange environment with wires stuck to them, sleep studies can ...