L.M.
Hi S.,
I'm not familiar with the Sleepy Wrap, but I used the Moby Wrap with my daughter. It is GREAT! It is basically one extremely long piece of cotton. You learn to wrap it around yourself and the baby. Sounds complicated, but it really isn't. There are no rings, zippers, straps, etc.
Like anything, there are pros and cons:
PROS:
Distributes weight very evenly across your back. In my opinion, the most comfortable carrier (I had a large baby, 9.2oz at birth.)
Baby is securely wrapped in, you never feel like she might slip out.
It fits anyone without readjusting straps, etc. Therefore, it works for large or small chested women and for men!
There are different positions you can wrap baby in, so its useable for awhile. They even say you can breast feed in it, but I never got the hang of that.
Its nice and soft to you and baby.
CONS:
Its a little tricky to wrap it, but once you understand it no problem. However, if you wanted to drive somewhere, then get out and walk around, this might be tricky, too, unless you had extra hands (husband, sitter, etc.)
Once baby is in... if she falls asleep, its pretty hard to get her out without waking. I didn't care, that was the only place my daughter would nap, so I'd just sit down and relax at that point, or eat some lunch or do something quiet.
It can be REALLY hot in the summer. Its basically two people's body heat!
If you wear it in public, you will get a LOT of attention. (Could be a pro or con!)
If you live in the Philadelphia area, there is a woman who sells breast feeding supplies out of her home in Devon. You can go to her house and she can show you some different slings and how to wrap them. Her web site is: http://www.nursingmothersupplies.com/ She has a good web site, too, if you're not in the area. Her name is Jennifer Neely and she was very helpful with the wrap and also nursing bras (not sure if you need that).
Lots of luck.