Unfortunately while off-gassing is a legitimate concern (particularly in poorly ventilated rooms) it is harder and harder to avoid, as spring mattresses now als

Unfortunately while off-gassing is a legitimate concern (particularly in poorly ventilated rooms) it is harder and harder to avoid, as spring mattresses now also often contain one or several layers of foam. I'd like to see some high quality research on this using realistic test environments, or even monitoring in actual bedrooms. I don't know who is willing to fund that though.