How much sleep do I need?
While the amount of sleep needed for good health and optimum performance mostly depends on the individual, experts suggest that adults’ function best when they get seven to nine hours of sleep each night. Ensuring that fatigue isn’t a problem during the day is one way of determining how much sleep is needed.
We need to remember everyone is different if you are refreshed and coping well with everyday tasks on 5/6 hours sleep this may be all you require.