The word "snooze" typically refers to a short sleep, especially during the daytime or when someone takes a brief rest. It's often used in the context of having a quick nap or, informally, to delay getting up in the morning after hitting the snooze button on an alarm clock.
The word "snooze" originated from the early 19th century and is believed to be a variation of the word "snooze," which itself is thought to be a playful alteration of "snooze" in the sense of slumber or sleep. The exact origins are somewhat obscure but it is linked to late Middle English with similar meanings.