Jack2 logo SleepSack
Jack1 logo SleepSack
Jack5 logo SleepSack
Jack3 logo SleepSack


sizes: Newborn - 12m


  • partial lining or full lining
  • design doesn't restrict movement
  • optional open bottom for diaper access
  • contains PDF Layers
  • optional A0 copyshop file & projector file included next to regular printout

By purchasing this pattern you agree with our no refunds-policy as explained in our FAQ.

The Birthday Brownie Sleep Sack

Are you ready to get creative?

Sweet dreams and no more cold feet! An easy fitting sleep sack that can be worn over warmer pj’s, or worn on their own when the weather is warmer. You can make this sleep sack fully reversible, so you can play around with matching or contrasting fabrics and make a unique sleep sack. Such a comfortable wearable blanket that baby can’t kick off.

With the diaper access option, you can opt to use snaps on the bottom of the sleep sack for an easy no-fuss diaper change at night. 

This is a very easy and fast sew - perfect for baby shower gifts!

This pattern is suitable for beginner sewists. Basic sewing skills are all you need to create a professional-looking sleep sack. You don’t need a serger to create this sleep sack.

FREE  - The Birthday Brownie Sleep Sack Pattern was released on my birthday as a gift to all our Facebook Sewing Group Members.

This is a DIGITAL file that you print at home, not a finished item or a paper pattern. All seam allowances are already added. This pattern is for personal use only and may not be shared or forwarded with anyone else.

This download contains:
1. Your PDF Pattern, with instructions and printable pattern pieces that can be printed on your home printer.
2. An A0 copyshop file (poster size). You can use this to have your pattern professionally printed at a copyshop.
3. A layered projector file. You can use this file if you own a digital projector that can project the pattern pieces on a flat surface (i.e. directly onto the fabric).


Lacey: "This sweet sleep sack comes together so quickly and has the option of a partial lining or a full lining for an extra warm sleep sack. The instructions are clear with photos to accompany each step. Once you make one, you’ll probably end up making a few!"

Danielle: "I love that it’s a sleep sack with sizes to get a good snuggly fit! It went together very fast and was easy and fun to make!"

Mallory: "It was very clear and easy to use. Can be done in about 30-60 minutes depending on skill. Perfect for a last-minute baby shower gift."

Angela: "This sleep sack is a great quick and easy project perfect for a variety of knit fabrics. Fit is generous so it is the perfect gift in any size and fun to personalize!"