The very idea of a bus with cushy beds conjures up images of J.K. Rowling’s Knight Bus, the crazy triple-decker bus for woebegone wizards in need of transportation. Set aside the zanier aspects and replace Diagon Alley with Santa Monica, and you’ve got Cabin, a sleek new sleeper bus that launched last week.

The glossy black bus, which offers cozy little sleeping quarters, luxury bedding, a communal bathroom and a Wi-Fi-equipped lounge, makes the San Francisco-Los Angeles run overnight. One-way tickets start at $115 (an increase over last year’s tab). Board the bus on Bryant Street by 11 p.m., wake up in Santa Monica the next morning at 7 a.m. — or 9 a.m., if you want to sleep in a bit or check email over coffee in the lounge.

When the project — founded by Stanford alums Tom Currier and Gaetano Crupi and originally called the SleepBus — did a pilot run last year, tickets sold out in three days and more than 20,000 people landed on the waiting list. Now the bus is rolling. Find out more — and make reservations — at www.ridecabin.com.

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