Researchers have found that a nighttime face mask can improve energy levels and vitality in people who suffer from the condition sleep apnoea, which is associated with snoring and breathing problems at night. The mask - called a CPAP machine - is currently recommended only to those people whose sleep apnoea is moderate to severe.

For the study, published in the journal The Lancet Respiratory Medicine, the researchers from Imperial College London picked over 200 patients from 11 National Health Service (NHS) sleep centres across the UK and investigated the use of the treatment for mild cases of sleep apnoea.