New York–based upstart Domio - which just raised a $12 million series A - snags long-term leases on buildings or units in mixed-use apartment complexes, then converts them into sleekly furnished pads with hotel-esque perks. Last year, competing apartment-hoteliers TurnKey and Sonder raised $31 million and $85 million, respectively.

These companies claim to offer travelers prices up to 25 percent lower than similarly sized hotels by, for instance, sliding into height-restricted, less touristy neighborhoods and swapping staff for smartphone check-ins and chatbot concierges.

Even traditional hoteliers are wooing Airbnbers: Last spring Marriott introduced a pilot program of vetted homestays called Tribute Portfolio Homes.