There can be many reasons why the leaves are hanging like this (overwatering, not enough water, to hot,...). If it's only this plant, than it's not due to the room temperature. Otherwise all the other cuttings would have drooping leaves too. My best guess: too much water.
These hanging leaves will probably drop soon. But don't worry, it's not too late to rescue your plant. Find the cause of the problem and act quickly. If the soil is too wet, then you can consider repotting in a drier medium. place your repotted fig in some kind of greenhouse (even a clear plastic bag will do) to keep the air humidity high during the first week, but keep the soil on the dry side. New leaves will start to form. Good luck!