Jellyfish sleep and nap like us. Studying them could help human brains NPRDNA damage modulates sleep drive in basal cnidarians with divergent chronotypes NatureJellyfish Snooze Like We Do, And It Could Explain The Origins of Sleep ScienceAlertAP article had amazing facts about resiliency of life [letter] LancasterOnlineEven Brainless Jellyfish Sleep—and It May Explain Why You Need Rest Too A-Z Animals