adjective

if you have broken sleep or a broken night, you sleep badly, waking up often

adjective

a deep sleep is one that you do not wake up easily from

adjective

dreamless sleep is sleep with no dreams

adjective

a light sleep is one in which you wake up often. Someone who often wakes up while they are sleeping is called a light sleeper.

adverb

if you sleep lightly, you wake up very easily

noun

the action of walking and sometimes doing things while you are still sleeping

noun

someone who is sleeping

noun

used for referring to someone who has been sleeping for a long time

noun

used for referring to someone, especially a child, when they have been sleeping and have started to wake up

noun

someone who walks while they are sleeping. A less formal word is sleepwalker.

adjective

sound sleep is one that is difficult to wake you from

adverb

if you sleep soundly, you sleep well and it is not easy to wake you

adjective

if someone has an uneasy sleep, they do not rest very well while they are sleeping

noun

noun

noun

adverb

someone who does not wake easily when they are sleeping

while you are sleeping

someone who wakes easily when they are sleeping

someone who regularly sleeps badly/well