Antonyms for the phrase "sending to sleep" can be seen as those that imply the opposite of inducing slumber or inducing a state of wakefulness. Some examples of antonyms for "sending to sleep" include energizing, revitalizing, refreshing, invigorating, stimulating, and rejuvenating. These words convey the idea of bringing about a sense of alertness, vitality, and heightened energy. Antonyms for "sending to sleep" can be helpful in situations where one needs to stay awake, alert, and focused, such as during work or driving. By using these antonyms, it becomes possible to avoid the lethargy and dullness that often come with excessive sleepiness or fatigue.