From a scientific point of view, there is no evidence that color will directly affect a person's luck or good luck. Color is the attribute of light, and people's feelings and reactions to color are subjective, so different people's preferences and emotional associations to color may be different. Scientific research mainly focuses on the influence of color on people's psychology and emotions, rather than whether the color itself is auspicious.

Therefore, whether it is auspicious to put a white mattress on a red mattress depends on personal beliefs and cultural background, and there is no clear scientific conclusion. Everyone can choose the color of the mattress according to their own preferences and beliefs, without worrying too much about good or bad luck. The above answers are for reference only, please don't be blindly superstitious.