I have a love for all thing pretty and girly and lingerie and sleepwear is definitely in that category. I recently got to try out Adore Me which is a site that sells pretty little lingerie and sleepwear sets and at really affordable prices.
Along with lingerie and sleep wear they have active wear, swimsuits and even Halloween costumes so there's tons to shop on the site. And athough the majority of the lingerie and sleepwear are a bit racier and not for everyday they do have some styles that I feel are cute and you'd be able to get more use out of. A few other picks of mine:
I actually love to sleep in rompers. Sure it's weird when you have to use the restroom in the middle of the night but really it's not that bad. Sleeping in rompers are the comfiest things ever as you don't have to worry about anything bunching up. This one is so cute and comes in two colors.