It's funny you mention that, because a friend of mine had a similar realization after relying on a sleep app for years. He actually lost power during a storm, and with his phone dead, he rummaged through his basement for an old transistor radio. The static from that thing, he said, lulled him to sleep in minutes, something the app with its gentle melodies never achieved. He realized he'd been chasing a high tech solution for a problem that had a perfectly analog answer all along. It struck me as a perfect example of how we layer complexity onto simple, effective habits. Now he keeps that radio on his dresser as a reminder, and I doubt he'll ever go back.