I haven't read through all these comments. We never used these products - I was just caught by the title of this thread.
I followed the link to the company's web page. Have you looked at their "photo gallery?" Several of the pictures show tiny infants sleeping scrunched up (remember the infantino sling positioning problem?) and/or with big fluffy blankets up around them.
I'm totally ignorant about this product. Just wanted to comment that it doesn't seem so hot to post those pictures as examples for how to use their product! Yikes. Maybe it is a safe product if used properly, I have no idea ... but yikes.
Often bumbling mother to baby girl "Sprog"
Born November, 2009