--- title: Our Team — Mellow Kids description: Mellow Kids was built by a certified pediatric sleep specialist and advised by clinical experts. Meet the team behind the app. image: https://www.mellow.kids/hubfs/mellow-kids.png --- [Skip to content](https://www.mellow.kids/about#main-content) [![Mellow Kids](https://www.mellow.kids/hubfs/logo-white-2.svg)](https://www.mellow.kids?hsLang=en) - [Home](https://www.mellow.kids) - [Resources](https://www.mellow.kids/resources) - [Blog](https://www.mellow.kids/blog) - [The Team](https://www.mellow.kids/about) - [Contact Us](https://www.mellow.kids/contact-us) Open main navigation Close main navigation - [Home](https://www.mellow.kids) - [Resources](https://www.mellow.kids/resources) - [Blog](https://www.mellow.kids/blog) - [The Team](https://www.mellow.kids/about) - [Contact Us](https://www.mellow.kids/contact-us) - [Personal Sleep Support](https://www.mellow.kids/personal-sleep-support) [Personal Sleep Support](https://www.mellow.kids/personal-sleep-support?hsLang=en) ## Grounded in science, shaped by real life We combine pediatric sleep expertise with developmental science to build guidance that supports families through every stage. #### The story behind Mellow Kids When I became a mother, I experienced how fragile sleep can be, and how overwhelming the advice around it often is. I followed the recommended courses and methods, but they felt rigid and disconnected from real life. What struck me most was how sleep was treated in isolation. Developmental stages, emotional growth, and cognitive leaps were rarely considered. Even though they directly impact how a child sleeps. With a background in user experience design, I immersed myself in sleep science and child development, ultimately becoming certified Pediatric Sleep. Supporting families one-on-one revealed a clear pattern: parents didn’t need more generic tracking and advice. They needed personalized, just-in-time guidance that adapts as their child grows. That belief became the foundation of Mellow Kids. — Daiany Nascimento Founder & CEO | Certified Pediatric Sleep Specialist ![Dai and Olivia](https://www.mellow.kids/hs-fs/hubfs/DAi.png?width=610&height=575&name=DAi.png) ![Mauricio and family](https://www.mellow.kids/hs-fs/hubfs/Mauricio%20and%20family.png?width=610&height=591&name=Mauricio%20and%20family.png) #### When it became personal As a father of two, sleep was not theoretical. It shaped our everyday life. Our first child struggled with sleep for more than two years. We tried courses, methods, and advice from every direction. At one point, we were even offered medical interventions that did not address what we felt was truly happening. It was exhausting and, at times, discouraging. That experience left a lasting impression on me. I saw how easily families can feel lost between conflicting recommendations, quick fixes, and solutions that do not fit their child. When I learned about what Mellow was building, I immediately recognized the need. This wasn’t just another app. It was a mission close to my heart and one I wanted to help shape.

With my background in technology and product development, I co-founded Mellow Kids to build something we wished had existed for our own family. — Mauricio Vargas Co-Founder & CTO ### Meet our team ![Daiany 1](https://www.mellow.kids/hs-fs/hubfs/Daiany%201.jpg?width=588&height=661&name=Daiany%201.jpg) ###### Daiany Nascimento Founder & CEO Mom to Olivia ![Mauricio Vargas](https://www.mellow.kids/hubfs/Mauricio%20Vargas.jpg) ###### Mauricio Vargas Co-founder & CTO Dad to Logan and Charlie ![Luiz Carvalho](https://www.mellow.kids/hs-fs/hubfs/Luiz%20Carvalho.jpg?width=588&height=661&name=Luiz%20Carvalho.jpg) ###### Luiz Carvalho Lead Developer Dad to Erva Doce 🐈 and Homer 🐕 ![Letizia Sorrentino](https://www.mellow.kids/hubfs/Letizia%20Sorrentino.jpg) ###### Letizia Sorrentino Frontend Developer Mom to Jaya and Ayan ![Arzu Guney](https://www.mellow.kids/hs-fs/hubfs/Arzu%20Guney.jpg?width=588&height=661&name=Arzu%20Guney.jpg) ###### Arzu Guney Full-stack Developer Mom to two girls ### Our advisors ![Mary Ann-1](https://www.mellow.kids/hs-fs/hubfs/Mary%20Ann-1.png?width=180&height=180&name=Mary%20Ann-1.png "Mary Ann-1") Mary Ann Nero Clinical Advisor | Registered Nurse (Pediatrics & Obstetrics) ![Sophia](https://www.mellow.kids/hs-fs/hubfs/Sophia.png?width=180&height=180&name=Sophia.png "Sophia") Sophia Westrich COO & Strategic Advisor ![Rajani](https://www.mellow.kids/hs-fs/hubfs/Rajani-2.png?width=180&height=180&name=Rajani-2.png "Rajani") Rajani Rao ML & AI Advisor ## Subscribe to our newsletter Thoughtful sleep and development insights to help you feel more prepared. Subscribe [![Mellow Kids](https://www.mellow.kids/hubfs/logo-white-2.svg "Mellow Kids")](https://mellow.kids?hsLang=en) [facebook-f icon](https://www.facebook.com/mellow.kids.sleep/) [Follow us on Linkedin](https://www.linkedin.com/company/mellowkids/) [Follow us on Instagram](https://www.instagram.com/mellow_kids_sleep/) [![tiktok](https://www.mellow.kids/hubfs/tiktok.svg)](https://www.tiktok.com/@mellow_kids_sleep) [Follow us on Medium](https://medium.com/@hello_83644) [Follow us on Facebook](https://www.youtube.com/@MellowKidsParenting) [Follow us on Facebook](https://www.pinterest.com/mellowkids/) **Pages** [Home](https://www.mellow.kids/?hsLang=en) [Blog](https://www.mellow.kids/blog?hsLang=en) [Resources](https://www.mellow.kids/resources?hsLang=en) [About](https://www.mellow.kids/about) [Contact us](https://www.mellow.kids/contact-us?hsLang=en) **Legal** [Disclaimer](https://www.mellow.kids/disclaimer?hsLang=en) [Terms & conditions](https://www.mellow.kids/terms-of-use?hsLang=en) [Privacy policy](https://www.mellow.kids/privacy-policy?hsLang=en) [Editorial policy](https://www.mellow.kids/editorial-policy?hsLang=en) Copyright © 2026, Mellow Kids ```json { "@context" : "https://schema.org", "@type" : "Organization", "description" : "Child sleep and development guidance for parents of children 0 to 2.", "legalName" : "Mellow Kids AB", "logo" : "https://www.mellow.kids/hubfs/mellow-kids-logo.png", "name" : "Mellow Kids", "sameAs" : [ "https://www.instagram.com/mellow_kids_sleep/", "https://www.facebook.com/mellow.kids.sleep/", "https://www.linkedin.com/company/mellowkids/", "https://www.tiktok.com/@mellow_kids_sleep", "https://www.youtube.com/@MellowKidsParenting", "https://medium.com/@hello_83644", "https://www.pinterest.com/mellowkids/" ], "url" : "https://www.mellow.kids" } ```