When the Sonoma Valley Public Library on West Napa Street re-opened after a substantial renovation last year, the new space boasted a separate Teen Room. Earlier this month, some new furnishings arrived, courtesy of the Friends of the Sonoma Valley Library.  On a recent weekday afternoon, Justin-Siena High School junior Katelynn Hayden and Sonoma Valley High School senior Joel Bremner studied and enjoyed the new “blob” chairs, stools and long resource bench in the Teen Room.