Is a pet rabbit nocturnal

Pet rabbits aren't nocturnal because they sleep at night. Rabbits are crepuscular: this means they're most active for the hours around dusk and dawn. Rabbits don't sleep all night like humans, though: they nap off and on but also hop around, graze on hay, play with their toys, etc. It's not a great idea to keep your pet rabbit in your bedroom because they do make some noise overnight and they definitely make noise early in the morning, probably earlier than you want to wake up!