Restless or too little sleep can make us feel unfocused and indecisive the next day. Valerii Apetroaiei/iStock via Getty Images Plus Imagine you got a rough night of sleep. Perhaps you went to bed too ...

Add Yahoo as a preferred source to see more of our stories on Google. Six hours sleep For those of us who worry about our sleep, every morning is a scramble of mental maths as we turn to our bedside ...

Henry*, a 50-year-old accountant, came into my office bleary-eyed. He told me he hadn’t slept well in months. He described tossing and turning at night and having trouble waking up in the morning.

Jenalee Doom receives funding from the National Institutes of Health. Melissa Nevarez-Brewster receives funding from the National Institutes of Health. Imagine you got a rough night of sleep. Perhaps ...