Luminary restaurateurs are so 20th-century. Anyone worth a bold-faced name these days wants to be linked to a hotel—from Robert De Niro, who is developing a property in lower Manhattan, to architecture junkie Brad Pitt, said to be consulting with nightlife tastemaker Rande Gerber on a hotel. So it's no surprise that the ever-inventive Kimpton Hotels has teamed up with a host of stars to create one-of-a-kind pieds-À-terre. The Britney Spears Foundation Room in Boston's Onyx Hotel (617/557-9955;; doubles from $339) has been decorated by the singer's mother to look like Brit's old Louisiana bedroom, back when she was a lot more innocent. In San Francisco, the Hotel Triton (800/800-1299;; doubles from $209) has suites designed by musicians Carlos Santana and Anthony Kiedis, whose eco-friendly room (with furniture made from recycled touring equipment) is known as the Red Hot Love Nest. Woody Harrelson is the latest to check in at the Triton: Woody's Oasis is filled with his own memorabilia and has organic cotton bedding, yoga mats, hemp curtains, and furniture made from fallen trees. Kimpton donates a portion of each guest's tab to the celeb's charity of choice. Who would've imagined that sleeping in a movie star's bed could also help save a rain forest?

Hotel Triton

Part eco-friendly, part rock-and-roll, the Triton is most famous for its seven “celebrity suites,” individually designed by music stars like Carlos Santana and Jerry Garcia (heavy on the psychedelic art and groovy multicolored fabrics) and Anthony Kiedis (whose “Red Hot Love Nest” has furniture made from recycled touring equipment). Equally popular these days, though, are the seven “eco-rooms,” decorated with environmentally safe paints, furniture made from salvaged forest-fire wood, and organic hemp bed and bath linens. All have New Agey amenities like free yoga mats (there’s 24-hour “YogaTV” on the flat-screen TV’s), aromatherapy bath products, and recycling bins for waste disposal. If you’re traveling solo, you can book one of 28 “Zen Dens”—petite rooms with daybeds for both sitting and sleeping, mechanical wind chimes, and bamboo plants.

Tip: Though the Triton is super pet-friendly, dogs and cats aren’t allowed in the eco-rooms (which are also reserved for those with allergies).

Room to Book: Sweet-toothed guests might not be able to resist the Häagen-Dazs suite, with its fridge full of complimentary ice-cream pints, cups, and bars.

Onyx Hotel

Tucked away on a side street in the downtown area, the Onyx is a Kimpton Group boutique hotel located within 1.5 miles of city highlights like Faneuil Hall, Bunker Hill, and TD Garden. Inside, the public spaces and 112 guestrooms are designed with clean lines, earthy tones, and vibrant red and black accents, including checkerboard carpeting and red suede chairs. Visitors also enjoy a host of little extras, ranging from a complimentary evening wine hour to fruit-infused ice water available daily in the lobby. The Ruby Room, with its fiber optic lighting, is a trendy spot for cocktails.