What is room temperature?
a comfortable ambient temperature, generally taken as about 70°F.
Room temperature is a common term to denote a certain temperature to which humans are accustomed. It is, under normal conditions, 21°C (70°F).
According to the West Midlands Public Health Observatory (UK), an adequate level of warmth for older people (aged 58 and above) is 21 °C (70 °F), and 18 °C (64 °F) in other occupied rooms. 24 °C (75 °F) is stated as the maximum comfortable room temperature.
What temperature do you keep your thermostat at during winter months?
I have it at 69 degrees, 52% of the country likes it cooler than me
http://www2.ljworld.com/polls/2010/dec/what-temperature-do-you-keep-your-theromostat-duri/