It had happened before: residents creeping out of bed in the middle of the night and swapping with another, sometimes returning later in the night, and sometimes leaving their bedmate vulnerable. I felt his eyes on me and knew that he was thinking the same. It would have been easier for us both if I had just said, “I’m not going to anyone else’s bed—I want you.” Instead I said nothing, and woke often, checking to see that he was still there.