A blackout eye mask is a lot cheaper and easier than trying to do the impossible task of eliminating all light from entering your bedroom. Or line the entire bedroom with blackout curtains.

Can't sleep in them they always get moved up. So i'm already highly invested in the process and on the last piece of the remaining light...

Anyone else have a helpful suggestion on what type of wood or metal that is white I could use?

You may be right, we bought it ten years old so I don't know if that was normal or not. There are three doors leaking light, so i've blacked out the south facing windows and the doors are the remaining issue. It is for my health and many women and studies have been done to show that a blacked out bedroom is safer for our health and reduces your chances of breast cancer. So I appreciate a helpful suggestion. I have towels right now on the bottom of two doors but the tops and sides that are letting in light are issue as well as the door sweep. It may be from the upstairs frames settling or earthquakes in CA or the frames were not set properly when they built the house but the doors have very pronounced light coming in. I wondered if there was something more attractive to use than the metal strip with plastic but i'm not sure there is.

What is the source of the light coming in through the doors?

So Cal Sun! There are small windows and two large outside the doors that are letting in the light.

Can you install black-out shades on the hall windows? It seems that you have done what you can to eliminate light sources in the bedroom, and the weather stripping suggested, while not the most attractive, might be your best bet to prevent the door "leakage." As understandably concerned as you are, you should perhaps speak with your doctor, who would be better qualified to discuss the studies linking nighttime light to breast cancer, and who may be able to offer some additional ideas. Let us know what you find out!