When people refer to the Poly being dark, I don't think they are referring to sunlight. They are referring to the room colors being darker. Darker wood furniture, darker fabrics, etc. Also--the lighting inside the room is not very bright. If you need to read very small print or prefer bright light for doing make-up or something, you may want to bring an extra light. it is fine to read by in general but not as bright as the lighting in some other resort rooms. Hope that makes sense.