Don't point the idol at the bedroom door. Many houses designed today have various types. Therefore, if there is a conflict between the bedroom and the location where idols are placed, it is recommended not to worship idols, because the bedroom is a place of lust, and idols look at each other every day, which will lead to bad consequences and bad luck.
It is better to have a wall behind the statue, so that there is a real feeling of offering sacrifices to God. If you wait on the windowsill, you will feel empty in the back, which is always a bad sign.