Sleep sac
Wednesday March 04th 2009, 8:50 pm
Filed under: Sewing

I am not skilled at sewing, but that doesn’t stop me from trying! I present to you a Kwik Sew sleep sac!

This is one of those “wearable blankets” for young babies. We like to use them because loose bedding in a crib might be a factor that contributes to sudden infant death, and who wants to take a chance with that?

I used Malden Mills Polarfleece (200 weight) that I pulled from the stash. I purchased the pattern from a local Mill End Textiles, the zipper and thread were from Joanns. Instead of using color-matched ribbing at the collar (who sells this stuff, anyway?), I followed the advice of sewers here and made the collar out of the same fabric. I traced out the pattern one day, cut out the fabric on a second day, and assembled the project over 2 days.

I made 1 major change to the pattern. The pattern instructs you to install the zipper such that the pull zips to right under the baby’s chin (a tab covers the top of the zipper). I deliberately used a separating zipper and installed it upside down so that the zipper pull is toward the ankles when the zipper is closed. I got this idea from the commercial sleep sac that we have, I thought it was very slick.

You can see evidence of my lack of sewing skillz in the photo above. One, the outer seam is so wavy. I have no idea why. I loosened the presser foot tension as much as I could. Maybe the stitches were too short? Two, the instructions called for seaming with an overcasting stitch. I’m unsure why that’s necessary when Polarfleece doesn’t fray, but I tried to do it anyway. I found that the layers shifted (tall nap and 1/4″ seam allowance), and I had to go over some areas more than once because I wasn’t always catching both sides with my overcasting. Three, my topstitching around the zipper got very wonky as I went around the edge and back up the other side. I think I hit the zipper pull at some point with the edge of the foot, and that pushed me off my intended track. Also, the margin between the fabric and the topstitching is noticeably different between the left and right sides, too. I decided I didn’t care enough to rip it out and redo it because hello, it’s for the baby, and she wears it in the dark, who is going to notice?

I made the XL size, this ought to last until the end of winter. Yay. Moving on.


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this is brilliant. fantastic idea, to put in the zip upside down. i think you are quite skilled at sewing, or at least engineering, to think of something like this, “outside the box” or in this case, outside the typical pattern. good job.

Comment by lisa 03.04.09 @ 9:19 pm

lookin good! as for sewing, i have a machine, but havent mastered it yet (i actually bought it to help with the steeks on my norwegian sweaters, haha. i did okay! used it three times. but i plan to make more). but as with knitting, you just keep at it and you will improve. thats what i keep telling myself! gambatte ne! (^_^)
-hahna from rfc. :D

Comment by h 03.04.09 @ 9:22 pm

ps ms cheeks are sooooo cute!

Comment by h 03.04.09 @ 9:27 pm

We loved those for the kids when they were little. Of course we purchased ours. You’re awesome!

Oh, another thing you can add is a little opening in the back and front so that if you need to put her in her car seat, you can put her in, thread the bottom restraint through the openings, and click her in.

Comment by zsmomma 03.04.09 @ 11:43 pm

She looks more cute in every picture you post.
I made similar bags for my daughter before the advent of polar fleece. I think you did very well as it isn’t the easiest fabric to sew. I find that sewing the seam twice, first in regular old straight stitch then a second time to overcast it is easier than trying to do it in one step. Did you use a zipper foot when inserting the zipper? It’s next to impossible to do well without one and I always need to pause and raise or lower the zipper pull(by raising the pressure foot while I have the needle in the fabric) to get it out of the way before sewing past it. Either way, smoothly stitched or not, it’s going to do the job and she will be warm as well as adorable!

Comment by Penny 03.05.09 @ 6:05 am

Well, I meant to do this on the previous post, but for some reason the comment box wasn’t there. Anyway, although it may take some time, the conversion to whole wheat will eventually feel natural. Nine years ago I started to bake all my own bread; today I not only bake it all, I also grain my own whole wheat flour. There was a long in-between period of mixing whole wheat and white flour, but last summer I made some white flour bread and found to my surprise that it tasted — well — empty and flavorless. I thought I missed it! And now I realize that I wouldn’t like to go back to it at all. (NOTE: I haven’t yet started to cakes in whole wheat flour, but I have done cookies. It can be quite good.)

Comment by bibliotecaria 03.05.09 @ 5:16 pm

I love the photo at the end! Is that confusion on M’s face?

Comment by grumperina 03.05.09 @ 7:45 pm

Wow, just like the Snuggie (as seen on TV). You rock.

Comment by Sue 03.05.09 @ 11:16 pm

She’s too adorable for words.

Comment by Angela 03.06.09 @ 8:18 am

What a cutie! That sleep sac looks very cozy.

Comment by Jennifer 03.06.09 @ 11:12 am

I think it looks great. Put the baby in it and it looks even better!

Comment by jessie 03.07.09 @ 5:57 am

Sometimes overstitching is used to control stretch in fabric, which may be why the bottom ended up wavy — that and you’re probably right and your stitch length was too short. Fleece has a one-way stretch if I recall right. I’d have to look since some of them also have two-way stretch.

It looks good either way. Baby M won’t care either way! Good job!

Comment by Annette 03.07.09 @ 9:19 pm

That child is gorgeous, period!

Comment by christina arnott 03.08.09 @ 8:52 pm

It looks great to me! We are using sleeping bags for our little ones too, but I have to admit that mine are bought second-hand from ebay rather than sewn by me. I’d like to try it, but I don’t seem to get time to sew much of anything lately (I’m still in awe at your nappy sewing skills!!).

Comment by Iris 03.12.09 @ 5:25 am