Baby tracking apps are stressful. Notifications, busy screens, data overload – they add chaos, not calm. Nestling is different. Free, simple tracking (one-touch, Siri, Watch, Lock Screen) with an optional AI coach that can directly analyse your logged data – personalised sleep advice without copying logs into chats. No ads. No marketing emails. Privacy-first. Built by a paediatrician dad who wanted tracking that helps, not overwhelms.