Last year I sewed a long-sleeve nightgown for my mother, using Love Notion's Tranquil collection. I am still fascinated with the interesting details of the pattern, so this year I made another nightgown, but a short-sleeved one for the summer. The fabric is a lovely viscose-cotton knit, light and soft, extremely pleasant to wear.
I used the same size as last year, I only tried to make the neck opening less gaping, as my mother complained of its width in the previous nightgown. I believe the problem with larger sizes is, that people can be large at different parts of their body, and as my mother has actually a fairly small stature, the upper part of her body, above the bust, is quite small. I could have made the opening even smaller, I believe the neckline at the back is a bit too wide, but that only occurred to me after I had already made the nightgown. Now I'm just crossing my fingers, that the fit will be alright this time.