Change a good thing or leave it alone?

Jessica

I have my babies room blacked out for naps. He was a really bad sleeper so we tried blacking out the room and it helped a lot. He now has nice long naps and sleeps well through the night. Should I slowly lighten up the room so he sleeps in complete daylight? Or don’t mess with it and leave it as is!? I don’t know if it’s important for babies to nap in daylight or not