By Joyce Gannon

An upper floor of a historic Pittsburgh office tower seems an unlikely spot to find the North American headquarters of a European luxury mattress maker.

But in spacious digs in the century-old Arrott Building on Wood Street, employees of Italy-based Technogel are working to convince Americans that a cool, blue gel will give them a deeper, more restful night's sleep. 

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Source: http://www.post-gazette.com