CAMBRIDGE, MA, Sleepagotchi, a mobile application with gamification and social elements that helps users improve their sleeping habits across the world, raised a $3.5M seed round from investors including 6th Man Ventures, Collab+Currency, Shima Capital, 1kx, DeFi Alliance, Sfermion, Emoote, and LCA Game Guild. Notable angels include Cem Kansu (VP Product at Duolingo), Santiago R Santos, and Justin Melillo (Founder of Mona).