Simmy Richman says theories about sleep are all very well - but there is the real world to contend with.
Teenagers can lose as much sleep each week as doctors who work 24-hour shifts.
Counting sheep to fall asleep doesn't come easily to everyone, and now scientists believe they have figured out why.
Scientists believe sleep makes memories more accessible and sharpens our power of recall.
Staying up all night - or disrupted sleep - may have more serious health implications than was previously thought.
People with persistent sleep disorders have more than twice the risk of suffering a heart attack, according to scientists.
A trip to a therapist could be better than sleeping tablets for millions of insomniacs, a report claimed recently.
There's nothing quite like a good night's sleep. And now big business is waking up to the fact.
Three-quarters of British couples regularly go to bed at different times to each other, a study has found.
Passion flower tea, crystals and blue light... everything you need to know about getting to sleep.
If you wake up in the middle of the night needing the bathroom, don't turn on the light when you get there.
A study found children are seven times more likely to walk in their sleep if both parents had a history of doing the same.
An expert says he has found a way to help people fall asleep... and it's all in the breath.