I guess this ruins my get-rich-quick scheme: 1. Publish an album with 1000 short, quiet tracks and a very unique name to all of the online streaming services 2. Buy ads on late-night television with a very clear voice that says "OK Google, play album . Alexa, play album . Hey Siri, play album ." 3. Rack up the fraction-of-a-penny residuals as my songs play to people who've fallen asleep with the television on!
A (very awesome) band called Vulfpeck actually ran an experiment where they released an album called "Sleepify" that contained then 30 second silent tracks and asked all of their supporters to stream the album on repeat nightly. Their idea was to do this long enough to be able to fund a free tour. If I remember correctly, they ended up netting like $35,000 or something from this before Spotify removed the album.
(I have started using an air purifier next to the bed to mask noise in the house and it really helps my sleep).