If you're an athlete or just a human being who enjoys living, replace your nightlight with a blue light.
It is the only frequency of light that won't disrupt your biological processes, including critical release of growth hormone, if you get up at night to go to the bathroom. I cannot overstate this enough. You need complete blackout in your room at night when you sleep and all nightlights should be blue spectrum. It won't matter to you until a couple decades later when the doctor tells you that you have cancer which I suspect is a direct result of the introduction of the electric lightbulb.
The risk of ovarian and breast cancer in women who have a streetlight outside their window that shines into their bedroom is six times that of a woman who smokes a pack a day of cigarettes. Government calls them public infrastructure but street lights should be considered sheeple killing rayguns because that is what the statistics say they are. Trust the facts.
John Ott wrote about it in the 70's and I read his obscure books in the early 90's. I noticed my results from weight training improved substantially when I replaced the light in the bathroom with a cool blue bulb. I felt bigger and my muscle tone was obviously improved within a few nights after simply putting a .99 cent blue light in my bathroom socket. Within two weeks I had put an inch on both biceps and an inch-and-a-half on both legs. When I met my wife the first time she said my quads looked like pickle barrels and I only discovered the truth about light and health five months beforehand.
Ott was possibly the greatest amateur scientist who lived in the 20th century but you notice his Wikipedia entry barely mentions it. He earned a Nobel prize about ten times over but was not of the right ethnicity/clique to receive one, being a white Christian. None need apply.