Do Fish Have Sleep Patterns? Fish have some surprising sleep habits! While some are night owls, others rise with the sun. Pelagic fish, for example, are the restless swimmers of the sea, rarely stopping. Meanwhile, demersal fish are the chill types, lounging at the bottom. Then there are the shy ones who love hiding in caves – you might own them but barely see them! Just like us, they need their beauty sleep. So, make sure to turn off the lights at night to mimic their natural rhythm! Follow for