Lots of us will have at some points in our lives woken up feeling groggy after getting a poor night’s sleep. But what causes us to have trouble sleeping, what effect does it have on our health and what can we do about it? In this episode, we catch up Prof Matt Jones, a neuroscientist based at the University of Bristol. He tells us how our sleep needs vary across our lifetimes, how not getting enough sleep can affect our ability to think straight and form memories, and why a lack of sleep can leave so many of us feeling cranky and impulsive. This episode is presented in partnership with Lumie. https://www.lumie.com/ Learn more about your ad choices. Visit podcastchoices.com/adchoices