TABLE 1.

Types of sleep recording devices

Type	Descriptiony 26 , 27	Examples a
Type 1	Full attended polysomnography (≥7 channels) in a laboratory setting
Type 2	Full unattended polysomnography (≥7 channels)
Type 3	Limited‐channel devices (usually 4–7 channels)	Bruxoff (3 channels: 2 for bilateral masseter, 1 for ECG) TEAC‐HR‐10 J (3 channels: 1 for masseter, 1 respiratory, 1 for ECG) Myomonitor (4 channels: 2 for bilateral masseter, 2 for bilateral temporalis)
Type 4	1–2 channels	Pro‐comp INFINITI (2 channels: 1 for masseter, 1 for ECG) EMG‐021/025, KTR2302B (2 channels for bilateral masseter) Grindcare (1 channel for temporalis)

Abbreviation: ECG, electrocardiography.

^a Examples of electromyographic recorders included in this review.