Sleep Health Definitions
Apnea – the complete pause of airflow during respiration for at least 10 seconds
Central Sleep Apnea due to Cheyne Stokes Breathing Pattern - recurrent apneas or hypopneas alternating with periods of waxing and waning respiratory tidal volumes due to waxing and waning respiratory effort, mainly due to a diminished respiratory drive
Hypersomnia – excessive sleepiness
Hypopnea – a partial pause of airflow during respiration for at least 10 seconds with a concurrent drop in blood oxygen levels of at least 4%
Insomnia – repeated difficulty in sleep initiation, duration, or consolidation that occurs despite adequate time and opportunity for sleep that results in some form of daytime impairment
Narcolepsy – excessive daytime sleepiness with REM sleep being achieved upon sleep onset
Obstructive Sleep Apnea – repetitive episodes of complete or partial upper airway closure during sleep resulting in a complete or partial pause of respiration with respiratory effort
Parasomnia – undesirable physical events or experiences that occur during entry, within, or during arousal from sleep, e.g. sleepwalking, sleep terrors, sleep related eating disorder
Primary Central Sleep Apnea - he recurrent pauses of respiration with no respiratory effort
Sleep Related Movement disorders – relatively simple body movements during sleep that causes a disturbance to sleep, e.g. leg cramping, restless leg syndrome, grinding teeth | 
