Hmmm ... what you say drawstring at the bottom - do you mean drawstring at the bottom of the sleeve or bottom of the nightie?

I got DD a few from Target (no drawstring in sight mind you) because I was told that they'd be easier in the hospital than taking her out of growsuits when it was time to change her. And they lasted for ages because when they were getting short, I'd just shove some jim jam bottoms underneath. She's nearly 2 now and is still wearing her newborn nighties as a jim jam top!