Along with soothing colours, a good fragrance can bring the body and mind into harmony and also promote relaxation.
A variety of environmental factors, including excessive noise or light and extreme temperatures, will disrupt the sleep of most individuals.
Surgical menopause is often accompanied by more psychological and physical difficulties and nearly 20 per cent of post-menopausal women reported sleep disturbances.
A machine learning algorithm identified a subset of 68 genes and with 92% accuracy could detect whether a sample was from a sleep-deprived or well-rested individual.
A long-term study of ageing adults showed that those who report being very sleepy during the day were nearly three times more likely than those who didn't to have brain deposits of beta amyloid.
Twitter has gone wild as Insomniac has released the launch date for its new game, based on Spider-Man.