Posting for traffic. Lived in our house over a year now (1960s built). Every single morning since, we've woken up with stuffy noses. We're fine in the day but get it again every morning. The air feels dry, particularly in our bedroom, even in summer (when heating off) and the windows slightly open overnight. I'd resigned myself to it being a well insulated house but my three-month-old daughter now clearly has a stuffy nose at night and I'm starting to worry it's something else (to extremes like asbestos exposure or mould I can't see!!). Would I be unreasonable to pay for an air specialist to do a survey on the house (I'm not rolling in money)? Does anyone have any other suggestions I could try first? Thank you MNetters!