Hi Dudewayne,
OMF is a larger factory direct manufacturer that is very open about the materials they use in ther mattresses and makes high quality and value mattresses. I wouldn’t hesitate to buy from them if they carry a mattress that is suitable for your PPP (Pressure relief, Posture and alignment, and your Preferences). For what it’s worth … a consumer survey done in October 2009 rated them higher than all the major manufacturers (smaller local manufacturers weren’t included in the survey).
Post #2 here includes some of the better options in the general Pittsburgh area.
Phoenix