Paul Briginshaw/Millennium Images, UK
What’s the difference between your time spent in bed and your bank balance? No, this isn’t the start of a terrible joke – and the answer is less than you might think.
We all have the odd occasion when we stay up too late and don’t sleep enough. Think of this as the equivalent of splurging on an expensive dinner: you probably shouldn’t have, but your bank balance hopefully won’t suffer too much.
This article is part of special series investigating key questions about sleep. Read more here.
But regularly going without enough sleep – a problem for many…