In a sleepy manner.

The property of being sleepy.

(rare) In a sleek manner.

(pharmacology) A pill or tablet having a soporific effect.

(idiomatic, euphemistic, almost always preceded by the) Death.

present participle of sleep together

(informal, euphemistic) Synonym of fuck around: to sleep with numerous partners.

(poetic) asleep / (poetic) sleepy

A seat, on an aircraft etc, that can be reclined to form a bed. / (US) A small compartment on a long-distance truck in which the driver can sleep when taking a break.

plural of sleeping bag