For a science writer who never sleeps, New York City seemed to be the perfect place to call home. After grieving the death of his partner, Bill Hayes moved to the city and began photographing people he met on the streets and subways. Then, he developed a romantic relationship with late neurologist Oliver Sacks.

Today on "Radio Times," Marty Moss-Coane spoke with Hayes about his new book "Insomniac City: New York, Oliver and Me" — a mixed-media memoir of letters, photographs, and memories. One of the memories Hayes recalled on the show was a time he and Sacks found themselves in a gay bar — which Hayes says was unusual for Sacks. Even stranger, the bar was hosting an event named in honor of Sacks himself.

"This was a story that did not end up in my book,” Hayes says. “I chronicled our relationship through these journal entries, and if a story wasn’t in the journal it didn’t end up in the book.”

For more about the relationship between Hayes and Sacks, listen to the full hour of "Radio Times."