What does 睡觉 (shuìjiào) mean in English?

Card 32NPCR Level 1132/53
CARD32
PROGRESS60%
睡觉
睡覺
shuìjiào
sleep(Verb plus Object)

Reveal: Click/Space/Enter/↑↓/w/s/j/kNavigate: ←→/h/l/a/d