There are many patterns for sleepsacks available online, but almost all of them have a zipper in the front, which is not very pretty. So I decided to draw my own pattern, with a blind zipper in the side seam. The straps close with kamsnaps.
Synthetic batting is not recommended for sleepsacks, so I ordered something I had never used before: Quilters' Dream Cotton. Quilters' Dream products are quite hard to find here in Europe, but luckily I found it at Elly Prins Machine Quilting in The Netherlands, who turned out to have an excellent service and superfast delivery.
I'm quite happy with the result, and so was Mr. StraightGrain, who made me the beautiful compliment: "You're going to give it as a present? For once you make something pretty, and then you're giving it to someone else?". Thanks, honey! :-)
I hope to be making one for Ava soon, and share the pattern and instructions with you!