Women's 100% Mulberry Silk Shower cap

Women's 100% Mulberry Silk Shower cap

Is it marketed for showering or sleeping? The title says shower but it shows someone sleeping in it….

I guess it can be both.

“To use, place the YFONG Mulberry Silk Shower Cap on your head before sleeping to protect your hair from frizz, breakage, and tangling while keeping it dry during showers.”