Yes, Lucky does this. I think it is normal. Lucky will sleep 7 to 8 hours a night then sleep from 8 to 12:30 then from 1:20 to 5:40. All other times, he is bouncing off the walls with energy. I try to play tons of catch with him. I would take him on walks everyday but they seem to stress him out. He does not like kids (he is scared of them) so walking around the neighborhood is stressful for him since they all want to pet him!