Classic House, Great Color(7)

Bold pattern is tempered by white woodwork and black accents in the master bath.

Sources:
Wallpaper ("Latrobe"/Seafoam #69408-400): Brunschwig & Fils, 800/538-1880, brunschwig.com.
Paint ("Snowfall White" #2144-70): Benjamin Moore & Co., 888/236-6667, benjaminmoore.com.
Faucets: Kraft Hardware, 212/838-2214.
Mirrored cabinet; lamp; vanity; sink; flooring; window treatment; small chair: owner's collection.