Crying children, noisy neighbours, a weak bladder — the things that can wake us in the night are numerous. But for some, there is another troubling cause — pain. Painsomnia is a medical condition where people go to bed in relative comfort but as they sleep their pain builds and wakes them up. The number affected is unclear, but a 2014 study in the Journal of Pain found that up to 88 per cent of those living with chronic pain have difficulty sleeping, while 50 per cent of insomniacs suffer from chronic pain. Painsomnia is a medical condition where people go to bed in relative comfort but as they sleep their pain builds and wakes them up