Baby Onesie - Digital PDF Sewing Pattern

The Baby Onesie Sewing pattern is long-sleeved and comes in sizes from Preemie to 3 Years old. The Pattern is easy to use, and we are so proud of the result of The Baby Onesie Sewing Pattern. 


The Baby Onesie Sewing Pattern is our most downloaded sewing pattern.


The Baby Onesie Sewing Pattern Includes:



Pattern size:

EU SIZES: 54, 62, 68, 74, 80, 86, 92 and 98.

US SIZES: Preemie, Newborn 0-3 Months, 3-6M 6-9 M, 9-12M, 12-18M, 18-24M, 2T and 3T.

AGE: Preemie - 3 Years.


Sewing time: Approx: 2-3 Hours 

Pattern Type:  PDF - Seam Allowance is included. 

Skill level: Beginner


How to use Happy-Sewing Patterns:

All of our patterns are in click and print format. You can simply print the pattern and sew the size you want. You can also choose to print the size you want using the index guide. If you need an in-depth guide you can click here


When the pattern is purchased you will automatically receive an email from us with a link to the sewing pattern. Click on the link to download the sewing pattern.

Make sure to check the spam filter if you haven't received the pattern within 2 minutes. 

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Please don't share the pattern file with anyone.

All of our sewing patterns are Copyrighted.


Please don't share the pattern file with anyone.

Baby Onesie - Sewing Pattern

$7.49 Regular Price
$5.99Sale Price