I’m not an Ivy League student, but I strongly believe that we NEED to sleep, ideally for 8 hours a night. I believe that students at MIT and Podunk U would agree with me. My kid, who attends a rigorous college and earns straight A’s, definitely sleeps every night. In HS, she slept every night for 7-8 hours. She goes to a non-Ivy school though, so perhaps it’s different for Ivy League students.