Bedroom, Bed, Wall Lighting, and Medium Hardwood Floor Large windows and sliding doors with maximal operability are placed throughout, including the master bedroom, where expansive lift-and-slide mechanisms line three exterior walls. The room is furnished by a custom mahogany headboard and bed frame by Larry Hepler and a glass Murano lamp by Massimiliano Schiavon.  Photo 8 of 11 in Six Concrete Boxes Make a Jaw-Dropping Martha's Vineyard Home