——creativity never goes out of style——

DIY Sleep Sack (in under 10 minutes)



I love infant sleep sacks! They are the perfect layering piece when a regular onesie isn’t warm enough. However, my little man had outgrown all of his cute sleep sacks and after several trips to different baby stores I had limited options. I could either purchase a cheaply made gender neutral sack for $35 or spend $55 or more on a cute boy sleep sack from a trendy baby store. Neither choice was tempting to me. 55 dollars?!?! I don’t even spend $35 on my own pajama’s…. I sure as heck aint spending it on baby pj’s that only fit for a few months.

Then I searched multiple tutorials online but I didn’t have the time (or patience) to be cutting out and following patterns. Not to mention taking a trip to the fabric store to purchase snaps or zippers and then attempting to put them in myself.  Just before nap time one day I was layering my little man with fleece sweatpants when a lightbulb went off… I was sure I had some scrap fleece material. So I whipped together this diy project out of sheer desperation. If you can cut with scissors and sew a fairly straight line then this is for you!

I wanted a sleep sack that was lightweight for the summer evenings but still warm enough for when the air conditioner kicks on. I find that a sleeper by itself is a little chilly, but a full piece sleeper and sack is too warm. So I dress my little man in a onesie underneath and it’s perfect. The fleece bottom keeps his bare legs toasty and the lightweight material up top keeps him cool enough. The best part is that you can mix and match with a heavy material or a light weight material depending on the season.

All you need is:

  • an old button up onesie/sleeper (either long sleeves or sleeveless, as long as it fits their torso, the size or length doesn’t matter)
  • scissors, needle and thread or sewing machine
  • fabric for the bottom of the sleep sack

Step 1 I cut off the bottom of the sleeper just above the leg buttons. Then I cut a simple U shape from two pieces of fleece. (I lied my little man down on my fabric and added roughly 6-8 inches extra in length and width for wiggle room). Sew around sides and bottom leaving the top open.


Step 2 Then I pinned the top opening of the fleece fabric to the bottom of the sleeper, turned it inside out and sewed them together. That’s it!!


 With the button down front it’s easy to dress baby without having to pull the entire sack over their head. Since I already had the scrap fleece material in my craft supplies this DIY cost me absolutely nothing! It’s not my favorite choice of fabric but it was what I had on hand. The best part is that you can make these from inexpensive or thrifted sleepers and any material you have lying around (including those old receiving blankets).  Or for a shower gift you could buy a relatively inexpensive sleeper and purchase your own coordinating fabric for the bottom.

Happy crafting!

People who say they sleep like a baby, usually don’t have one. ~Leo J Burke

Author: Domestic Ingenuity

I am a DIY-ing, crafting, thrifting, baking, sewing, cooking, deal-loving gal with too much energy and a love for creating.

3 thoughts on “DIY Sleep Sack (in under 10 minutes)

  1. you are brilliant!!!

  2. Love this idea, my lil man just outgrew his. I’m trying this! Thanks

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