sleeping

US /ˈsliː.pɪŋ/
UK /ˈsliː.pɪŋ/
1.

ngủ

in a state of sleep.

:
he looked at the sleeping child
1.

ngủ

the fact, state, or condition of being asleep.

:
it was 90 degrees at 1 a.m. a few weeks ago and sleeping was near impossible