Varied chairs in front of a black-painted fireplace topped with a board covered with guest messages on Post-it notes make up a small waiting area for Mama Shelter Hollywood’s restaurant.

Colorful seating juxtaposes the black flooring and white walls of the restaurant, whose curved mirrors are lined with vintage postcards.

Artwork depicting vintage cars backs a banquette in the restaurant.

On the ceiling above the white-brick reception desk are some of the colorful chalk sketches depicting artists’ memories of their mothers found throughout the public spaces—a vision of hotel owner Benjamin Trigano.

A large, custom foosball table in the lobby can be moved to create a dance floor on busy nights, while various guitars hang behind the DJ booth.

Guestrooms, which glow pink because of headboards fitted with red lightbulbs, are marked by black ceilings and carpet recalling Mediterranean tiles.