Difficult morning awakening from rapid eye movement sleep and impaired cognitive function in delayed sleep phase disorder patients.

摘要

Difficult awakening from slow wave sleep was not observed. A subgroup of DSPD patients may have a severe problem waking up from REM sleep. DSPD patients may also have a state-like impairment in cognitive function in the morning and a trait-like impairment not depending on time of day, compared to normal sleepers.