Zippered Swaddle Sack
In this tutorial, we’ll show you how to sew a zippered swaddle sack that helps your baby feel more secure and is said to help them sleep better and feel more relaxed.
Video class
This video is for members
Join Lulu Ferris to watch the complete class and sew along at your own pace.
What you’ll make
Sew a close-fitting swaddle sack in stretch knit, with the baby’s arms enclosed rather than passing through side openings.
A long front zipper provides access. A full-length inner guard separates it from the baby’s skin, while a hook-and-loop flap covers the slider at the neckline.
What you’ll learn in this class
- Identify the front, back and smaller pattern pieces.
- Cut mirrored fronts and a fold-cut back.
- Stabilize the front edges for the zipper.
- Add a finished lower zipper stop.
- Insert the zipper and inner guard in knit fabric.
- Make the protective hook-and-loop flap.
Fabric and supplies
The sample uses soft knit fabric with some stretch. You’ll also need a long zipper, interfacing, hook-and-loop tape and the smaller fabric pieces included in the pattern.
The sample has visible serged seams. You may place them inside instead, or use straight and zigzag stitching on a regular sewing machine if you do not have a serger.
Make it your own
You can adapt the project into a regular sleep sack with arm openings. Use the placement from the baby sleep sack pattern, then finish the openings to match the other edges.
Sizing
The pattern covers sizes from 0–3 months through 9–12 months. The front and back necklines have different shapes, and the class explains how to identify them before cutting.
The video covers the stretch construction and protective zipper details, accompanied by a downloadable multi-size pattern.
Pattern & materials
Patterns are included with membership
Active members can download every available PDF and materials list.
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