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Mini Merino Fleece Onesie

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Warmth Rating:
2.5 Tog / Warm
Sleep Coach Recommended
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1 year
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2 years
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3 years
Clothing & Sleepwear
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not archived
Age Suitability:
Kids 1-2 years
Made From:
Age Suitability:
Kids 2-3 years
Age Suitability:
Kids 3-5 years
Age Suitability:
Babies 6-12 months
Sleeping Bags & Suits
Size Bucket:
4 years
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Product Description


This grey merino onesie with funky coloured  trim features an improved fit based on customer feedback. With a longer length arm and leg and roll-over cuff, it is soft and deliciously snuggly. The easy to use double-ended zipper means you can do night nappy changes without taking the whole suit off. 
At The Sleep Store, we love to find amazing products that help children sleep better.

We've hunted the world for a really warm, safe, versatile sleepsuit for kids and never found something we really loved. So we've developed our own Sleep Store Merino Fleece Onesie. Our kids love it so much they refuse to take them off in the morning. We've tested them on very chilly nights camping and in comfy cosy beds at home. Big thumbs up all round.

This snuggly Onesie is designed for sleep! It's warm enough for kids who kick off their covers, so they won't wake up cold. And it's also perfect for using with one of our Sleep Store merino duvets or some light blankets for those children who manage to keep their bedding on or who prefer to layer up. And definitely cosy enough for children like our third, who is very skinny and really feels the cold, so he loves this onesie with a duvet on top.

Lots of customers also report these are amazing inside a sleeping bag! Layer with a mid-weight bag such as a 3-seasons woolbabe or our 1 layer merino bag. Merino is naturally temperature regulating, so the onesie helps your child to be just the right temperature all night. 

Plus we also love that merino is naturally fire retardant. Of course we recommend keeping your children well away from any heaters and fires ("a metre from the heater!") but merino is a naturally low fire danger fabric.

The Sleep Store Onesie is made from a soft, snuggly one layer of 100% merino fleece. It's soft brushed finish on the inside feels divine against the skin.

Please note:

These warm cosy suits are a NIGHT TIME garment, designed for use in bed.Your child may love their onesie and end up in it all day, crawling round the floor. However please note that our returns policy does not cover worn out knees from crawling!


Sizing Information

Sizing Chart

SizeA - Total Length cmB - Shoulder Width cmC - Sleeve Length cmD -  Leg length cm
0 (6-12 months)70232834

Materials & Care


100% Australian Merino fleece - 290 grams

As with all Sleep Store products, your Zipsuit is easy to care for...we only develop products that are easy for parents!!!

  • Gentle machine wash with wool detergent. 
  • You can low tumble dry if you really need to, but hot tumble drying will result in shrinkage. 
  • So we recommend drying on an airing rack, heated towel rail or on the line. 
  • The Merino dries amazingly quickly.

As with many wool garments,you may experience a bit of pilling on this garment. Please note this is often due to a soft fibre such as merino rubbing against other fabrics, such as flannelette sheets. We consider pilling a normal part of wear and tear on a soft merino garment. We could have treated the fabric much more to reduce pilling but then it would lose its lovely, snuggly softness. Please take care with moths. Moths are the most common cause of small holes in merino garments. 

Love your Merino and it will love you back!

Shipping & Returns Information

Fast Shipping - In stock, ready to ship!

We offer fast, economical shipping across New Zealand. All items on our website are in stock, ready to dispatch (excludes pre-order or custom size items). Most orders arrive within 1-3 business days. Auckland shipping is generally overnight or you can choose Click and Collect.

Shipping starts from $5 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.

We ship with Courier Post & Fastway. Packages are sent Non-Signature Required unless over $350 value or you request Signature Required for security concerns. If you are rural, we don’t charge extra but please do include a note on your order so we can ticket your package correctly. Please allow additional days for rural or you are ordering during holiday periods or major promotions.

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 technical limitation.

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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.

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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 with parents in mind, to offer fabulous quality and great value. 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. We are all parents and know what fabrics and features make life easier for parents, and great for little ones to use.