You need to bring out your tin-foil hat if you are a regualar at the acousticguitarforum. These guys takes care for their guitars to the extreme.
As already mentioned, you are fine if you can keep the humidity anywhere between 40-55 pct relative humidity. So get yourself a gauge. In my humble opinion: if you are comfortable, chances are your guitar will be too.
In this part of the world we do experience dry indoor climate due to cold'ish weather and over-insulated houses, and this causes quite dry air indoors. During winter we often experience as low as 30pct. This made me buy a low cost air humidifier for our living room and it keeps the humidity at 45pct.
Besides from removing the risk of drying out my guitars, which are hanging on the wall, it also helps from dry eyes and skin. We have really been surprised how much it helps to get this part of indoor climate stabil and within good tolerances.
And... get a stand for that guitar before it goes wrong!