https://www.dualshockers.com/persona-5-royal-morgana-wont-be-telling-you-sleep/
Atlus revealed that through the Ask Morgana Anything. A fan asked: "I know you'll reprimand me Morgana, but can we go out more at night?".
Morgana answered: "In P5R, you'll have many more occasions to do night activities than in P5, like reading, studying, or watching DVDs with me. But there are times when we'll be too tired for anything and we'll go to sleep."