Excessive daytime<unk> iness
Insufficient<unk>  - shift work, underlying comorbidity, medication affects<unk>  disorders - circadian rhythm<unk> -wake disorder, narcolepsy<unk>  related movement disorder - restless legs syndrome, periodic limb movement disorder
Abrupt awakening or abnormal sounds during<unk> 
Primary snoring - Most patients who have<unk>  snore, but most patients who snore do not have<unk> .
GERD- can produce a choking sensation and dyspnea at night
Nocturnal asthma
Nocturnal seizure
Early morning headaches
Space occupying lesions of the brain
Obesity hypoventilation - would potentially show hypercapnia/hypercarbia on venous blood gas
Insufficient<unk>  - shift work, underlying comorbidity, medication affects<unk>  disorders - circadian rhythm<unk> -wake disorder, narcolepsy<unk>  related movement disorder - restless legs syndrome, periodic limb movement disorder
Primary snoring - Most patients who have<unk>  snore, but most patients who snore do not have<unk> .
GERD- can produce a choking sensation and dyspnea at night
Nocturnal asthma
Nocturnal seizure
Space occupying lesions of the brain
Obesity hypoventilation - would potentially show hypercapnia/hypercarbia on venous blood gas
Obstructive sleep apnea
Excessive daytime sleepiness
Sick sinus syndrome
Insufficient sleep - shift work, underlying comorbidity, medication affects
Pulmonary hypertension 
Sleep disorders - circadian rhythm sleep-wake disorder, narcolepsy
Pulmonary hypertension
Sleep related movement disorder - restless legs syndrome, periodic limb movement disorder