Although I prefer long (45 to 50 inch or longer) cotton nightgowns, they can be a tad too warm during the warmest months. They can also work out well around house in the early hours or before sleep time, much like a house robe. But kimonos are nice too.
I do also like the cotton pajama tops which go down to closer to the top of my buns, sometimes longer, sometimes shorter. On colder days I will wear the bottoms, not on warmer nights. Some can be like a sleep shirt. Pintucks and lace make them look so pretty.
But I also like the shiny satiny/silky gowns as they do feel cooler to the skin. It is different feel with them, as compared to cotton.
All can be very feminine.
Chrissy