sleep phase delay syndrome

sleep phase de·lay syn·drome

a disorder in which the circadian rhythm of sleep and waking falls into a delayed but stable relationship with external time cues of day and night.

sleep phase de·lay syn·drome

a disorder in which the circadian rhythm of sleep and waking falls into a delayed but stable relationship with external time cues of day and night.

sleep phase de·lay syn·drome

(slēp fāz dĕ-lā sindrōm)
A disorder in which the circadian rhythm of sleep and waking falls into a delayed but stable relationship with external time cues of day and night.
References in periodicals archive ?
The second illustrates sleep phase delay syndrome, a disorder of sleep timing rather than of sleep itself.