My name's Earl, and I'm a roving web wanderer. Every weekday, I answer a question from curious folks like you. Alexis, Age 10 Dear Alexis, According to the Fish FAQ in our Fish category, fish do sleep, but not the same way that we do.
Most fish have long periods of inactivity during the night or day.
Since they don't have eyelids, they can't close their eyes. But they can rest by floating in place, or digging a small hole in the mud. They're always on the lookout for predators, and can swim away at a moment's notice. All Rights Reserved.