According to superstition, is it good to use two mattresses?

Filling holes and paving roads makes it easier for all living beings to travel. What you accumulate is yin virtue, which will be repaid to your descendants or your future generations. If you sincerely contribute to all sentient beings without asking for anything in return, your destiny in this life will change. For example, your happiness, wealth and longevity will increase. Of course, if you think this is superstitious, you don’t have to do it; if you do it, you think it’s okay