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The Sleep Store

The Sleep Store Merino Knit Onesie - Newborn - 1 year

SKU:
1C-CH-MK-O
Availability:
2026-03-20
Gift wrapping:
Options available
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Type:
Onesie
Type:
The Sleep Store - Merino Knitwear
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Colour Bucket:
Cream
Colour Bucket:
Grey
Colour Bucket:
Green
Colour Bucket:
Pink
Size Bucket:
0000
Size Bucket:
000
Size Bucket:
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Size Bucket:
0
Size Bucket:
1 year
category_filter:
Clothing & Sleepwear
category_filter:
Gifts
Age Suitability:
Newborn Babies
Age Suitability:
Babies 0-3 months
Age Suitability:
Babies 3-6 months
Age Suitability:
Babies 6-12 months
Age Suitability:
Kids 1-2 years
Made From:
Merino
Excluded Free Shipping:
false
Archived:
not archived
Organic:
false
preloader
$76.95
Zip zip-info
afterpay afterpay-info afterpay-info

Estimated Back In Stock Date: 20 March 2026

Product Description

Details

The Sleep Store Merino Knitwear Onesie is a beautifully classic outer layer, crafted from 100% merino wool to keep babies cosy while still allowing them to move, wriggle, and explore. When you’re dressing your little one for cooler days, comfort and warmth are everything.

Made from soft merino knit in a stylish seed stitch, this onesie has a lovely textured finish that feels both timeless and special. The knit is warm yet breathable, helping regulate your baby’s temperature throughout the day. Merino is naturally insulating without being bulky, making it ideal as an outer layer over a bodysuit or singlet during autumn and winter.

Thoughtful design details make this piece as practical as it is beautiful. Wooden buttons run down the front for a classic look, while snaps along the legs allow the garment to be fully opened for easy nappy changes – especially helpful with wriggly babies. The round neckline and raglan sleeves provide extra freedom of movement, so your baby can stretch, crawl, and play comfortably.

Designed in classic, gender-neutral colours, this knitwear onesie is easy to mix and match with the rest of your baby’s wardrobe. For extra warmth on chilly days, you can even layer it with one of our cosy merino knit vests. Available in sizes from newborn through to 1 year, it’s a timeless piece that feels just as suitable for everyday wear as it does for special outings.

Highlights

  • 100% merino wool: Soft, breathable knit that keeps baby warm without bulk.
  • Seed stitch texture: Classic finish with a timeless, elevated look.
  • Temperature regulating: Naturally insulating while allowing airflow for all-day comfort.
  • Full opening design: Wooden front buttons and leg snaps for easy dressing and nappy changes.
  • Freedom to move: Raglan sleeves and relaxed fit for wriggling and play.
  • Newborn to 1 year: Versatile outer layer in classic, easy-to-style colours.

Sizing Information

Sizing Chart


SizeLengthChestInside LegSleeve Length
Newborn45cm42cm13cm25cm
0-3 months52cm44cm17cm28cm
3-6 months57cm46cm21cm31cm
6-12 months65cm48cm25cm34cm
1 year69cm50cm28cm36cm
Please note - measurements are taken with the garment laid flat. Measurements such as chest, waist etc have been doubled.

Materials & Care

Materials


Materials
100% merino wool 
Woolmark Pure Merino Wool - 21 microns
Care
Machine washable
Wash inside out in a laundry bag.
Wash with similar colours.
Use approved wool detergent.
Gentle cold or 30 degree machine wash on a wool or delicate wash cycle.
Do not high spin.
Do not soak, bleach or use softeners.
Dry flat in shade avoiding direct sunlight.
Do not hang dry as it can cause the garment to go out of shape.
Do not tumble dry.
Cool iron on reverse.
Gently reshape by hand if needed.
Do not dry clean.

Learn how to care for your Merino Knitwear with Amanda



Watch Amanda explain the Woolmark Standard

Shipping & Returns Information

Fast Shipping - In stock, ready to ship!

We offer fast, economical shipping to Australia, dispatched every week day from our Auckland, New Zealand warehouse. All items on our website are in stock, ready to dispatch (excludes pre-order). Please allow 3-5 working days for main centres, 5 working days for outside of main centres and up to 8 working days for heavy or bulky orders.

Shipping starts from $12 for small items. Just add your items to your cart and use the Shipping Estimator in the Mini Cart or Cart with your post code. Please double check your shipping in the checkout, particularly for large items which the estimator doesn’t accurately calculate.

All packages are sent with New Zealand Post and delivered by Australia Post.

Packages are labelled with a Signature with Authority to Leave if they are less than $300 value so delivery doesn’t require you to be home. Please let us know if you need Signature Required for security concerns.

Free Shipping for orders over $100* (excludes large items)

Free shipping is available when you spend over $100! Please note bulky or heavy items are excluded from this offer and you can confirm the correct shipping at the checkout. Unfortunately our Cart Shipping Estimator does not accurately exclude large items from free shipping calculations. We apologise for any inconvenience with this technical limitation.

Go to Shipping & Delivery Page

Hassle-free Returns for 365 Days!

We have expert staff available to help you choose the perfect item – how can we help before you purchase? However, when you do purchase something that doesn’t fit or isn’t quite right, we offer an excellent returns policy and the best possible customer service.

We also know life with babies and children is busy, so you have up to 365 days for your returns and exchanges to come back to us:

  • Up to 90 days from purchase - You can return for an Exchange, Store Credit or Refund
  • Up to 365 days from purchase – You can return for an Exchange or Store Credit

Returned items must be received back in perfect condition, unused and unwashed condition including the instructions and packaging. Please ensure you carefully package items so they are received back in perfect condition.

Our Returns and Exchanges page has full details, including product specific returns information and our Returns Form.

Go to Returns Page

Brand Information
The Sleep Store
We're thrilled to bring you our own brand range of baby and family sleep essentials. We have developed our range of natural fibre bedding & clothing with parents in mind, to offer fabulous quality and great value. Our organic cotton bedding and wool underlays is award winning and top rated by our customers. Our aim is for The Sleep Store products to be the best on the market. The Sleep Store range is designed and developed in house by our own team and now includes baby sleeping bags, bedding, merino clothing, organic cotton clothing, cots, bassinets and more. We are all parents and know what fabrics and features make life easier for parents, and great for little ones to use.

Frequently Bought Together

The Sleep Store Merino Knit Onesie - Newborn - 1 year

$76.95
The Sleep Store Merino Knit Onesie - Newborn - 1 year
Colour:
Grey Marl
Dark Green
Natural
Pink
Size:
Newborn
0-3 months
3-6 months
6-12 months
1 year