The first Mempathy episode deals with sleep disruption in people with dementia-related memory loss. Our question from the public was “My friend’s mum has dementia and seems to have no concept of what time of day it is. She is becoming nocturnal, sometimes goes to bed at 6am etc. This causes lots of problems!” In this episode, Professor Catherine Loveday and Sonia Beldom speak about their own experiences of managing nocturnal mums. They then discuss the science underlying sleep, which explains why these problems happen (and in fact is helpful for any of us who may struggle with sleep sometimes). Catherine offers some tried and tested evidence-based tips for getting things back on track.