Vincenzo took the shots above on Park Avenue just south of Broadway with his iPhone. So this is my theory. From the look of the fonts and the weathering, the signs written on the brick between the windows are clearly very early 20th-century (c.1910). My guess is the sign for Broadway Sleep Mart can be anywhere from 1930’s to 1940’s. I’m going to assume that the proprietors conducted their business at the Park Avenue location for several decades and then outgrew their space and moved up the street on Broadway. The public records above show the address at 835 Broadway with an incorporation of 1956 – up the street a bit in a larger space, now a laundromat. Vincenzo also points out that the Park Avenue location may have been maintained as a warehouse. I’m also inferring from these records that in 1962, they changed the name of the store.