Wake up with matted hair? It’s usually caused by friction against your pillow....

https://source-wiki.win/index.php/How_Can_I_Stop_Waking_Up_with_Split_Ends_Getting_Worse%3F

Wake up with matted hair? It’s usually caused by friction against your pillow. Switching from cotton to silk helps strands glide, minimising breakage overnight. For extra protection, try tying your hair into a loose topknot with a soft scrunchie