Halo Organic Sleep Sack

When my daughter Willa was about three months old we had to stop using her swaddle blanket, because she kept busting out of it.
She was too young for a regular blanket, and I still wanted something to snuggle her up in. That's when I discovered the Halo Organic Sleep Sack.
It's a blanket that your baby wears. My favorite part is that the zipper zips from top to bottom, so the zipper isn't near baby's face or hands.
Willa wears hers every night (even in the summer- we keep her room cool).
She is currently wearing the medium size, and is about to grow out of it. I can't find a large one. If anyone knows where I can find a large one please leave me a comment or send me an email.*

*Updated- Found.One of my readers just emailed me a link to this.