That’s my 1920s pink satin peignoir or dressing gown.
Here’s a similar 1920s pink satin peignoir.
The pattern for the 1920s dressing gown is just a rectangle with sleeves.
I used pink and white satin fabric for the 1920s peignoir.
It’s closed with a snap at the left side.
I used the same pink satin fabric for my 1920s slip.
In these pictures I’m also wearing my 1920s crochet lace boudoir cap.