 Still cold, even when your thermostat is cranked up, these three things might be to blame. The color of your room. Your paint color can actually impact the way you perceive temperature. Cooler tones can cause you to experience a cooler temperature and warmer tones a warmer temperature. Your lighting. If paint isn't an option, try different colored lighting. Airlines do it all the time to make you feel more relaxed, but it also helps with temperature perception. Humidity. When there's too much humidity, sweat can't evaporate, and we pretty much go into overdrive. And too little humidity can cause heat from our body to escape quickly, which could be the reason why you still feel cold, even when your thermostat is set to high.