It is with great sadness that the Sleep Research Society shares the passing of Dr. Jim Horne. Dr. Horne passed away peacefully on October 27, 2023. He is survived by his wife and two children. Dr. Horne was an emeritus Professor at Loughborough University, where he ran the Loughborough Sleep Research Centre. Dr. Horne was the Editor of the Journal of Sleep Research, a Professor at Leicester University, in the Department of Neuroscience, Psychology and Behaviour, a Fellow of the Royal Society of Medicine, and Honorary Secretary of its Sleep Medicine section. Some of Dr. Horne’s interests in sleep were: why we sleep, effects of sleep loss on body and brain, and the ageing brain. Dr. Horne will be sorely missed by his family and friends.