Key points from article :
The lack of sleep can contribute to a range of mental and physical illnesses, including Alzheimer's, cancer, obesity and poor mental health.
Tech brands are bolstering their efforts to try and solve our sleep problems for good.
But will more knowledge about our sleep patterns really give us more power to change them? Or will we run the risk of doing the opposite and actually losing sleep over our need to track it?
The study was published in the PubMed Central.