Common sleep related acronyms

AHI: Apnea/Hypopnea Index

BiPAP: Bi-Level Positive Airway Pressure

CNS: Central Nervous System

CPAP: Continuous Positive Airway Pressure

CPT: Continuous Performance Test

CRD: Circadian Rhythm Disorder

CSA: Central Sleep Apnea

CSF: Cerebrospinal Fluid

CSR: Chronic Sleep Restriction

DIMS: Difficulty Initiating or Maintaining Sleep

DLMO: Dim Light Melatonin Onset

DSPD: Delayed Sleep Phase Disorder

DSPS: Delayed Sleep Phase Syndrome

EDS: Excessive Daytime Sleepiness

EEG: Electroencephalogram

EHS: Exploding Head Syndrome

EKG: ElectroCardiogram

EMG: Electromyograph (measures muscle activity)

EOG: Electroculogram

ES: Excessive Sleepiness

ESS: Epworth Sleepiness Scale

FASPS: Familial Advanced Sleep Phase Syndrome

FSS: Fatigue Severity Scale

HH: Hypnagogic Hallucinations

ICSD: International Classification of Sleep Disorders

IH: Idiopathic Hypersomnolence/Hypersomnia

ISWT: Irregular Sleep-Wake Cycle

KLS: Klein-Levin Syndrome

MSL: Mean Sleep Latency

MSLT: Multiple Sleep Latency Test

NREM: Non-Rapid Eye Movement

OSA: Obstructive Sleep Apnea

PLMD: Periodic Limb Movement Disorder

PLMS: Periodic Limb Movement during Sleep

POD: Parasomnia Overlap Disorder: RBD/SW/ST

PSG: Polysomnography (overnight sleep study)

RBD: REM Sleep Behaviour Disorder

RDI: Respiratory Disturbance Index

REM: Rapid-Eye Movement

RLS: Restless Legs Syndrome

RMD: Rythmic Movement Disorder

SOREMP: Sleep-Onset REM Period

SP: Sleep Paralysis

SW: Sleepwalking

SWS: Slow-Wave Sleep