Okay...
I am genuinely not trying to talk down to you when I clarify this, but only because I cringe at the idea of you guys leaving this site and calling a bonnet a "Chef's Hat" or a "Shower Cap" in the middle of trying to argue about nigs only for whomever you are arguing with to make you look like an idiot by explaining what they are wearing.
These are bonnets. This is an old-lady thing from middle-ages and victorian times that continues to this day for cosmetic purposes. Its not just blacks, but a lot of women wear them too. It's supposed to be less stressful on your scalp than putting your hair in a ponytail. If you sleep in it and you have long hair, it keeps your hair from getting knots.
As blacks have nappy-ass hair, they wear bonnets more.
Of all the pictures, the niggest one is the one with a literal sports-styled elasticband for the forehead instead of a silk-wrap that says "Minority" in cyberpunk lettering. That is the blackest thing I have seen in a while