The global recorded music industry is worth about $15bn. The market for sleep aids is worth around $60bn or 4x that. So is sleep the saviour of the music market?
And where there's a trend, there's money: the market for sleep aids in 2013 was worth £41.7 billion according to BCC Research, and this is expected to rise to £57bn by 2019. Countless insomnia startups have sprung up in recent years, hoping to crack the issue - from cognitive behavioural therapy options such as Sleepio, which has its own music function, to wearables that vibrate when you snore and headphones with EEG brainwave sensors.