Bedtime will never be boring again by Sansahash.

English Unisex Sai Onesie Pyjamas

(2 customer reviews)

 8.99 excl BTW

Size Chart:

This pattern is designed to fit children of the sizes given in the chart below. Please measure your child to find their current size for a perfect fit. Sansahash L&K swimsuit - By Sansahash for sizes 6m through 12Y Girls - I just love the fit of this swimsuit and the style. Must have!

Yardage requirements:

Below are the estimated yardage requirements. The amounts are based on 60” (150 cm) wide fabrics and for non-directional prints only. The estimated yardage also includes or accounts for shrinkage.

yardage estimate sai onesie

Materials Required:

Recommended Fabrics:

– 4-way stretch knit fabric with at least 75% stretch. Recommended alpenfleece, french terry, tricot, etc. We reccommend to use a uni print for placket so as to avoid your prints not to be upside down when installed.

 – Fusible Interfacing (4-way stretch interfacing)

– Ribbing for Neck and cuffs.

– Snap buttons approximately 12.4 mm (1/2”)


This unisex onesie is a must have loose-fitting, cozy and compfy jumpsuit for the coming season. The design features a snap button front placket, roll-up sleeves and legs and a ribbed neckline. Perfect for Christmas as loungewear or sleepwear. Your child’s bedtime will never be boring again! I promise you. This will also make a perfect outfit when opening presents or as a perfect gift under that Christmas tree. 

Sewing Level: Advanced Beginner

Sizes: 6M – 12Y (Boys & Girls)

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Pattern Features:

~Computer drafted with graded sizes 6m-12y

~Layered sizes, so you can print only what you need

~At home print features

~Step by step tutorial with illustrations

~Size chart

~How to Blend section to help you customize the fit for your child

~Imperial and metric measurements

~Print Shop file


You are purchasing a DIGITAL PDF sewing pattern. You are NOT purchasing the finished garment shown in the photos. Once your payment has cleared, you will be able to download your files under “MY ACCOUNT” in the “Download” section. Make sure you added as safe email so you don’t get your emails from us in SPAM.


Due to the digital nature of PDF patterns/tutorials, we cannot issue a refund for any reason. If you are having trouble locating your file or downloading, please email us at We will be happy to assist you.


You are welcome to sell garments made by Sansahash patterns on a home base setting. Please give pattern credit to Sansahash. We strictly prohibit copying and/or redistributing this pattern in any way.

Happy Sewing xxx

2 reviews for English Unisex Sai Onesie Pyjamas

  1. Mgeni

    gloria2887 (verified owner)

    I absolutely love this pattern! Directions are clear and easy to follow and it comes together nicely. My kids love their Sai pjs.

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  2. Mgeni

    Dagbjort Sigurdardottir (verified owner)

    My kids have been living in their Sai’s and luckily now they each have three of them so its safe to do laundry every now and then! 😉

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