loading . . . âGoodnight, Poor Sleepâ: A randomized-controlled trial of a brief, peer-led, psychological sleep intervention for university students This study evaluated the efficacy of Goodnight, Poor Sleep, a brief, single-session, peer-delivered sleep intervention based on cognitive behavioural ⌠https://www.sciencedirect.com/science/article/pii/S0005796726001002?via%3Dihub