Not to be confused with nightgowns, nap dresses are cool, comfortable dresses that are made for lounging and, you guessed it, napping.
They are so fashionable that these nap dresses look like sundresses so many are wearing it in public. Hill House Home claims to have originated the “Nap Dress” and trademarked the term back in 2018, but as Twitter users point out, any dress can be considered a nap dress -- you just have to have slept in it at some point. (Today)