PS3 Health Institute

 https://www.quora.com/Is-it-okay-to-sleep-in-the-same-clothes-you-were-wearing-all-day-for-one-night-because-if-you-changed-them-you-wouldn%E2%80%99t-feel-sleepy-anymore

 https://www.muji.com/in/blog/change-clothes-before-sleep/#:~:text=It%20is%20said%20that%20changing,is%20soft%20to%20the%20touch.