In a person with rem sleep behavior disorder rbd the paralysis that normally occurs during rem sleep is incomplete or absent allowing the. The onset of rem sleep behavior disorder is often gradual and it can get worse with time. Resmed Boyfriend Snores New Sleep Apnea Resmed Mouth Device For Rem sleep accounts for 20 25 of the sleep period. Sleep apnea rem . Usually rem sleep happens 90 minutes after you fall asleep. Some patients have airway obstruction because of a diminutive or receding jaw that results in insufficient room for the tongue. Although sleep apnea can occur during any stage of sleep it is often worst during rem sleep because of reduced muscle tone in the upper airway that naturally occurs during rem sleep. A multi ethnic study in the june 15 issue of the journal of clinical sleep medicine reports that there is a statistically significant relationship between obstructive sleep apnea osa episodes occurring during rapid eye movement rem sleep and type 2 diabet...