The nightgown is made of a soft, cool, and stretchy fabric. This is something that I look for in pajamas. However, sizing is off. I wear a size 10 and purchased a large. The nightgown fit like a size small and was too form fitting around the midsection. The description shows that it is more of an a-line fit, which was not my case. I would say size up (maybe even up to 2 sizes, depending on the type of nightgown), however, sizing seems to be inconsistent with this product, so it still might not be a good fit.