The phenomenon known as sleep anger, or 'slanger' is on the rise, as mothers share their experiences as they struggle with lack of sleep.
Sleep anger is a condition similar to the effects of 'hanger' where there's a rage driven by lack of food, sleep anger is driven quite simply, by not getting enough sleep.
According to research by U.S scientists, the condition disproportionally affects women, as they are more 'susceptible to the ill-effects of sleep deprivation and become more hostile and angry than men'.
Mother, Heather aged 33, confesses 'I need ten hours' sleep a night, otherwise I'm a nightmare, I'm usually in bed by 9pm, but I had made the mistake of staying up until 11pm and we all paid the price.'
Heather's husband, Wayne, finds Heather's bouts of rage so hard to live with, he has spent the last six years retiring to bed at 9pm. Heather said 'we'll see trailers for TV programmes that don't start until 9.30pm, so Wayne has to record them to watch at 7pm the following night'.
Heather said about her son, Rowan: 'I remember once being awake in the early hours with Rowan wailing inconsolably and I was so tired I felt I couldn't go on. I ran into the back garden and screamed, 'Shut up!' over and over. Bedroom lights went on in houses all around us as neighbours got up to see what the racket was, but I was far too livid to care.'
When her daughter Jaya was a baby, Jin Dhillon, 40, was so furious with her investment banking husband, due to her lack of sleep, that the couple decided to have no further children.
'It put a huge strain on our marriage,' says Jin, 40. 'Once, when Jaya was three months old, my husband came home to find me in my pyjamas and said: 'What have you done all day? You haven't cooked dinner and the house is a tip.' '
The red mist descended and, clenching my fists, I screeched: 'You'd better get out of here before I do something I regret!' '.
For expert sleep tips, check out Dr Nerina's Sleep Toolkit.