could use a strong long enouch beam of wood or metal across window opening , or just have rope or wire or chain always tied to bed that will then be pulled to window when you climb out and veight pulls on it. but then you have a chain or rope always on floor in corner or can hang it up a bit on wall . mabye put it in a tube pipe for looks . or drill a fastener into call on inside of window. mabye safest to go into a harness first and have a short rope wire chain to be hanging just below window or is that too close to heat flames comeing out , then what halfway to next floor below or but the longer the rope the more risk if fall down big shock when reach end of rope. ji
