sleepˈlessly adverb

sleepˈlessness noun

sleepˈy adjective

1. Inclined to sleep, drowsy
2. Inducing or suggesting sleep
3. Characterized by quietness and lack of activity
4. Partially decayed internally, esp of a pear, soft and lacking juice

sleep apnoea see apnoea

sleeping bag noun

A quilted bag for sleeping in, used by travellers, campers, etc

sleeping berth noun

sleeping car, sleeping carrˈiage or sleeping coach noun

A railway carriage with berths for sleeping in

sleeping draught noun

A drink containing a drug to induce sleep

sleeping partner noun

A person who has money invested in a business but takes no part in its management

sleeping pill noun

One containing a sleep-inducing drug

sleeping policeman noun

A low transverse hump built into the surface of a road, intended to slow down traffic

sleeping sickness noun

1. A deadly disease of tropical Africa, characterized by headache, great drowsiness, and exhaustion, caused by a trypanosome introduced by the bite of a tsetse-fly
2. Sometimes erroneously applied to sleepy sickness

sleeˈping-suit or sleepˈsuit noun

A baby's all-in-one garment for sleeping in

sleep learning same as hypnopaedia (see under hypno-).

sleep mode noun (computing)

The facility of temporarily restricting electrical power in a computer to those parts that are needed to restore it to full operation, so that it can be left switched on when not in use

sleepˈout noun

A partitioned-off section of a veranda for use as a sleeping area (Aust and NZ; see also sleep out below)

sleepˈwalk intransitive verb

sleepˈwalker noun

A person who walks in his or her sleep, a somnambulist

sleepˈwalking noun

sleepˈyhead noun

A lazy or sleepy-looking person

sleepy hollow noun

A very quiet place (from A Legend of Sleepy Hollow (1820) by Washington Irving)

sleepy sickness noun

1. Encephalitis lethargica, a feature of which is great drowsiness
2. Formerly applied to sleeping sickness

get to sleep

To manage to fall asleep

go to sleep

1. To fall asleep
2. (of a limb) to become numb through pressure or positioning that cuts off the blood supply

in one's sleep

While asleep

on sleep (Bible)

Asleep

put to sleep

1. To anaesthetize
2. To kill (an animal) painlessly (euphemistic)

sleep around (informal)

To be sexually promiscuous

sleep in

1. To oversleep, wake or get up later than intended
2. To sleep later than usual
3. To sleep at one's place of work

sleep off

To recover from (eg a hangover) by sleeping

sleep on

To consider overnight, postpone a decision on

sleep out

1. To sleep outdoors overnight (sleepˈout noun)
2. To sleep away from one's place of work

sleep over

To sleep at another person's house overnight, esp after a party (sleepˈover noun)

sleep together (euphemistic)

To have sexual relations with each other

sleep with (euphemistic)

To have sexual relations with