A trance-like state resulting from the use of opium or opioid drugs such as morphine or heroin. / A drowsy, restless period of sleep caused by the withdrawal of such substances.

Slowed or weakened by recent sleep; drowsy; groggy.

A burst of oscillatory brain activity during stage 2 sleep.

plural of sleep spindle

(idiomatic, chiefly in the negative) To sleep at all.

plural of sleep mask

present participle of sleep-eat

Third-person singular simple present indicative form of sleep-eat

past participle of sleep-eat

To eat in one's sleep; to eat while asleep.