The original 1.5-meter bed is widened to 1.7 meters with bricks. Is it okay to use Feng Shui? Thanks!

Yes, Feng Shui does not say that the size of the bed has any impact. The main thing is the position of your body when you sleep, especially the position of your head. If the head (preferably the whole body) is in an auspicious direction, that's fine. In addition, in addition to whether the position of the body is auspicious, it is also very important to determine whether the five elements in the direction of the head of your head are in the direction of your happiness when sleeping.