1940s Cotton Knit Dress or Night Dress Size S/M

This delightful dress I’ve had in my collection for many years. It’s quite old. I’d guess 30s or 40s. It’s a lovely grayish blue color with a ribbon tie in back. 3 decorative buttons at neckline. It is in good vintage condition for its age and still very wearable. I found one pea sized hole towards bottom that I will hand sew up. 40” long 18” sleeves Up to 34” bust