The latest articles on DEV Community by sunil chaudhary (@sunil_chaudhary_3985d071c). https://dev.to/sunil_chaudhary_3985d071c https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3688659%2F3b173636-3536-4eeb-9bb1-c1cc68ae17fc.png https://dev.to/sunil_chaudhary_3985d071c en sunil chaudhary Thu, 01 Jan 2026 15:18:28 +0000 https://dev.to/sunil_chaudhary_3985d071c/i-built-a-free-sleep-cycle-calculator-5ef7 https://dev.to/sunil_chaudhary_3985d071c/i-built-a-free-sleep-cycle-calculator-5ef7 <p>We all sleep every day, but many of us still wake up feeling tired — even after 7 or 8 hours. I used to experience this a lot, which made me curious about sleep cycles and how timing affects sleep quality.</p> <p>While working on a small frontend project, I decided to turn that curiosity into a simple tool.</p> <p>🛠 What It Does</p> <p>This is a lightweight Sleep Cycle Calculator that helps you find better times to sleep or wake up.</p> <p>You can use it to:</p> <p>Find bedtimes based on when you want to wake up</p> <p>Find wake-up times if you’re going to sleep now</p> <p>Follow 90-minute sleep cycles</p> <p>Get results instantly (no login, no pop-ups)</p> <p>🔗 Try it here: <a href="https://sleep-steel.vercel.app" rel="noopener noreferrer">https://sleep-steel.vercel.app</a></p> <p>💡 Why I Made It</p> <p>Many similar tools felt cluttered, ad-heavy, or locked behind apps. I wanted something simple, clean, and free.<br> The site does include a few ads to support hosting, but the focus is on keeping the experience fast and usable.</p> <p>⚙️ Tech Stack</p> <p>React</p> <p>Simple state logic</p> <p>Responsive UI</p> <p>Deployed on Vercel</p> <p>This project reminded me that small, focused tools can still be genuinely useful.</p> <p>If you’re curious about sleep cycles, feel free to try it out 😊</p> webdev react productivity sideprojects