Sleepy times are referred to as a range of synonyms. One common phrase for sleepy times is bedtime. Another synonym for sleepy times is slumber, which is often used for periods of deep and uninterrupted sleep. Drowsiness is also a frequent synonym used to describe the feeling of being sleepy. A more informal synonym often used is snooze, which refers to a short nap. Another synonym for sleepy times is doze, which means to sleep lightly. Sleepy times can also be referred to as the land of Nod, which comes from the bible and is used to describe a state of sleepiness. Overall, there are many different options to describe the same tired feelings.