寐

魇寐

yǎn mèi

to have a nightmare

假寐

jiǎ mèi

to doze

夙兴夜寐

sù xīng yè mèi

to rise early and sleep late (idiom); to work hard

梦寐

mèng mèi

to dream

梦寐以求

mèng mèi yǐ qiú

lit. to yearn for sth even in one's dreams (idiom)

寐龙

mèi lóng

Mei, dinosaur genus

寤寐

wù mèi

(literary) awake or asleep; (fig.) all the time; constantly

寤寐以求

wù mèi yǐ qiú

to crave day and night; to strongly desire