Struggling to sleep is a surefire way to leave you drained, grumpy and unproductive, but when does a bad night’s sleep a few times on the trot become a real problem?
According to DirectLine Group research, one in seven Brits survives on dangerously low levels of sleep a night, under five hours, and nearly three-quarters (71 per cent) of UK adults do not have the recommended seven to nine hours of sleep a night.
