After getting accustomed to sleeping in a nursing bra following my daughter's birth, I was looking for something to replace it that would be comfortable and soft. This fits the bill! It's extremely comfortable for sleep.
My only complaint is that the size is an A/B, and at my current size A, there are "wrinkles" on the cups because I don't quite fill them out, making it impossible to wear for anything but sleeping (it would look too lumpy and bumpy underneath a shirt, and isn't quite "thick" enough to cover everything for full modesty.)
But for what I wanted it for (just nighttime sleep) it is perfect.