相关单词近義詞 sleeplessness 失眠, alertness 警戒, vigilance 警戒, watchfulness 警覺性, restlessness 輾轉不安, insomnia 失眠, restiveness 倔強, attentiveness 注意, awareness 認識反義詞sleepiness, 想睡，睏倦臨近詞wake, Wakese 返回 wakefulness