Here’s a thought: combine necessary travel with the ability to sleep in style and you’ve got a transit start-up in the making.

Cabin (formerly SleepBus) is a new travel service that has outfitted double-decker buses with 24 beds, a lounge space, bathroom, and Wi-Fi. The service is available for travel between San Francisco and Los Angeles. According to Cabin’s website, it pairs the cost effectiveness of a bus with the luxury and comfort of roomy sleep compartments to “change the way we travel with unbelievably comfortable overnight vehicles that maximize every waking and sleeping moment.”

The service is already pretty popular. Per Curbed SF, the overnight fee between the two cities has already risen to $115 from the original cost of just $48. The bus leaves from one destination at 11 p.m. and arrives at the other by 7 a.m., though you’re allowed to keep sleeping until 9 a.m. if you need the extra shuteye.

Founder Tom Currier hopes to coin the phrase “moving hotel” and has worked closely with hospitality experts to reinvent the concept of luxury travel by bus, down to the choice of bedding for each private sleep compartment. 

If you’re looking for a new way to travel between the two cities, get in line. Per Business Wire, the waitlist is already 20,000 people long. No wonder the company recently raised $3.3 million in funding.