I made this quick doll sleeping bag for Kalla's doll for her Camping Day at kindergarten a couple of weeks ago. It was super simple as I used velcro instead of dealing with a long zipper. Easier for her to work with too.
This is what it looks like opened up.
I also included a coordinating pillow. It is completely separate, however you could hand sew it to the sleeping bag if you want.
If you like, make a pillow. I simply cut a rectangle about 11.5" X 12.5". Fold in half along the 12.5" side right side together and sew leaving an opening for stuffing. Stuff firmly and close the opening by either slip stitch (hand sew) or topstitch with a machine.
Finally have a project to link in Misty's fun sewing parties: Sew Cute Tuesday