Best experienced with headphones. Imagine this: You've been up doing work all night. Finally, you've finished but feel restless from staring at that glaring blue screen. You open the window. It's warm. You sit there for a minute and then crawl into bed. Your clock reads 12:30 AM. You yawn and fall asleep soundly to the crickets chirping outside under the full moon and blinking fireflies.
Sound samples from mixkit.co.