People agonising over a better night's sleep may now have relief; scientists have decoded a formula to help them better

The formula scores the person's sleep quality from "great" to "tossing and turning all night".
The formula, developed by the University of Manchester in association with The Fine Bedding Company is - sleep quality = [(T x Bt) + C ] / [ Ha + S + L + (H x D)]
A score of two is a great night's sleep, one is average and zero is tossing and turning all night.
Source-ANI