asleep

adj.睡着

【用法】  asleep是表语形容词,在句中不可用作前置定语。类似用法的词还有:afraid, alone, awake, alive,ashamed, alike等。

【搭配】  be fast asleep酣睡

fall asleep入睡:”Mindfulness",being focused, is a tool that some people use to avoid falling asleep.(北京高考)