Getting a good night's sleep is a widely discussed topic, with the sleep aid market valued at over $100 billion annually.
Lynne Peeples, a science journalist and author of The Inner Clock, explores the science behind sleep.
Advice on how to get good sleep is everywhere, with the market for sleep aids worth more than US$100 billion annually.
However, scientists warn that online hacks and pricey tools aren’t always effective.
Instead, they suggest that understanding the network of biological clocks in the human body could lead to improved sleep.
Author summary: Science holds the key to better sleep.