Natural Stone Tile Surface Finishes. The face of stone tile flooring typically has one of three types of finishes applied: natural, honed, or polished. The finishing process of natural stone begins once the stone is quarried and cut into a rough slab. The rough slab face is polished with abrasive pads.
The best air conditioning temperature for sleeping is whatever you can get by on with just a sheet over you. If you have the air conditioner set so low that you need pajamas and a comforter, you have it set too low. Try working your way up from that 82F to 84F, 86F, or even higher.
If you were to set your temperature at 70 degrees and 50% relative humidity, at 68 degrees that would be 55% relative humidity. So the difference of those 2 degrees would translate into having to dry that air to get it to a lower moisture content, and that costs significant money.