Glug glug glug, the underwater lullabies of the aquatic world! Do fish sleep? Well, if fish had bedtime stories, they’d probably be aquatic adventures of the deep. Picture a fish nestled among seaweed, eyes closed, dreaming of underwater castles. While they might not tuck themselves into fishy beds, fish do have periods of restfulness. So, to answer your question, yes, fish do sleep, but it’s more of a floating meditation than a bedtime ritual. Sweet dreams, little fishies!