There are several synonyms for the phrase "the nods," which typically refers to the drowsy feeling that can come over someone who is struggling to stay awake. Some common synonyms include drowsiness, sleepiness, slumber, lethargy, fatigue, and inactivity. These words can be used to describe a general feeling of weariness or a specific kind of tiredness that comes over someone who is trying to focus on a task or remain alert for a period of time. Other more specific synonyms might include yawning, drooping eyelids, and heavy head, which all describe physical symptoms associated with tiredness and drowsiness.