Sounds about right. When people use language like that, my (probably unhelpful, but satisfying to me) typical reaction is to pretend not to understand. "Oh, you need a sleep sack? Congratulations on becoming a parent! Well, my aunt is a former NICU nurse, and she swears by HALO, but I think once you get past wanting to swaddle, any brand is as good as another. Just see what you can get second hand, it'll be fine."