plenty of studies into this; https://www.sciencedirect.com/science/article/abs/pii/S1389945717302551 https://www.sciencedirect.com/science/article/abs/pii/S138

plenty of studies into this; https://www.sciencedirect.com/science/article/abs/pii/S1389945717302551 https://www.sciencedirect.com/science/article/abs/pii/S13899... https://futurecarecapital.org.uk/latest/deprivation-linked-to-poorer-quality-sleep/ https://futurecarecapital.org.uk/latest/deprivation-linked-t... https://www.nature.com/nature-index/topics/l4/socioeconomic-influences-on-sleep-health https://www.nature.com/nature-index/topics/l4/socioeconomic-...