Got this for my daughter-in-law who was expecting two weeks after Christmas. It is generous in fit, but the best thing was that she is able to breast-feed in it, which makes those middle-of-the -nights much more comfortable. More than I usually pay for a night-gown but well worth it and a very welcome gift.
I'm not used to a full length nightgown, I guess it's been about 30 years since I've had one and I'm not used to it bunching up around my waist at night... but it is very roomy and comfortable. One thing is that I wear and medium and it was huge, so I had to send it back and get a small. I normally wear a size 10 pants.