Free UK Delivery on orders £20 and over

Welcome to Merino Kids UK

Talk to Us: +44 (0) 808 1890720

Winter Weight Go Go Bag

The Winter “Sherpa” Weight Go Go Bag™ is the warmest baby sleep bag on the market for which there is a real need in some houses and parts of the UK. So this season, we have brought it back with a broader colour and design offer. With a pure merino fleece inner lining and a double layering of fine, organic cotton on the outside, the Winter or ‘Sherpa’ Weight baby and toddler sleep bag is suitable for room temperatures below 18°C providing that extra warmth when needed with the same amazing Merino breathability.

Not sure about which Merino Kids Go Go Bag™ is right for you? Click here for easy comparison in our useful Temperature Guide or email or call us for advice.

Colour: Cherry Blossom, Forget-Me-Not, Stone, Tussock, Grey & Blue, Yellow & Blue, Green & Navy, Pink & Blue.
Size: Baby (0-2yrs) and Toddler (2-4yrs).

Availability: Out of stock


FREE UK Delivery on orders £20 and over plus Next Day Express.

International delivery is also available.

Call us if you would like more details on this product.

Tell your friends about us – they’ll receive £15 off and you’ll receive £10 off each friend’s completed order!



The Winter “Sherpa” Weight Go Go Bag™ is the warmest baby sleep bag on the market for which there is a real need in some houses and parts of the UK. So this season, we have brought it back with a broader colour and design offer. With a pure merino fleece inner lining and a double layering of fine, organic cotton on the outside, the Winter or ‘Sherpa’ Weight baby and toddler sleep bag is suitable for room temperatures below 18°C providing that extra warmth when needed with the same amazing Merino breathability.

The Merino Kids™ Go Go Bag™ is an award-winning, 100% natural sleeping bag that helps prevent your baby waking in the night! It is amazingly practical and has been designed with your child’s comfort and safety in mind. It has been proven that Merino is the best material for children to sleep in or on.

  • Merino’s unparalleled ability to “breathe” means it helps regulate your child’s temperature. So use it without the risk of overheating.
  • No need to use sheets or blankets which can disturb a child’s sleep when it wriggles free or gets tangled up. Your child will WAKE LESS inside the safety of the Go Go Bag™ but it can still kick and move around naturally. Simply add clothing layers within the bag for extra warmth if required.
  • Babies associate the bag with sleep and will settle more easily in unfamiliar surroundings.
  • The Merino Kids™ Go Go Bag™ has a CLEVER DESIGN and is suitable from 2-3 months through to 2 years old and in a larger size from 2 to 4 years old.
    • Simply close the armhole poppers to adjust the sizing for smaller children – this stops them from sliding down into the bag.
    • Shoulder poppers and a full length zip along the bag allow the Go Go Bag™ to be opened out completely flat for nappy changes.
    • A zip flap cover keeps the zip end away from skin and makes it more difficult for little fingers to undo.
    • The bottom half is generously sized to allow freedom of movement.
    • The Go Go Bag™ can be taken anywhere with its unique safety belt aperture – simply transfer your child from car seat or buggy straight into their cot or bed.
  • We only use 100% natural fibres – superfine Merino wool on the inside and 100% organic cotton on the outside (for durability).
  • Our Merino is superfine, luxuriously SOFT, LIGHT, non-itchy and hypoallergenic, helping kids with sensitive skin & eczema problems. Its ability to readily release moisture means NO CLAMMINESS next to the skin, creating a perfect micro-climate around the body.
  • The material also retains LESS ODOUR and nasty smells, reducing the need for frequent washing, and kinder on the Go Go Bag™ and the environment. When washing is required, it is machine washable on a wool cycle only, maximum 30°C. We also recommend using a non-bio detergent. Hang dry.
  • LOW FIRE RISK. Wool is the least flammable of fibres, and the safest to have next to your body. It is naturally self-extinguishing and, unlike synthetics, it won’t melt and stick to your skin. The Go Go Bag™ has passed rigorous fire safety testing.

The Winter Weight Go Go Bag™ has the following composition:

  1. One layer 100% superfine Merino fleece (lining)
  2. One layer 100% organic cotton fleece (outer)
  3. Designed for room temperatures below 18°C (64°F)
  4. Adjust clothing layers to suit bedroom temperature.
Size Guide Chest Width (at knee position) Length (from back neck line down)
NB-2yrs 28cm 53cm 86cm
2-4yrs 32cm 60cm 104cm

All sizes are approximate and for guidance only.

Feefo Reviews

FeeFo Reviews

This product has no reviews yet.


Customer Reviews (8)

No more worries if she is warmReview by Kampik
+ The bedroom is around 18 degrees and she requires no pants, only long sleeved top to be nice and toasty.
- The pop buttons around arms are just not fit for purpose, or we must be using it wrong. As soon as they are closed, they open.
- The zip could also start at the bottom of the bag for more convenience and be covered with some lace secured by Pop button at the top if there is problem with child trying to open it (although we never had this issue with the other bags). (Posted on 29/11/2016)
Good product but stiff for toddlerReview by crazy flower
Temperature in the nursery varies significantly at night and the WWGGB does a great job in keeping warm. Good looking product, washes well when needed. The touch is great and feels cozy. Excellent quality of materials, like all Merino Kids sleeping bags we have been using.

I think that at least in our case the product is more appropriate for traveling than sleeping in a cot.
The inside is similar to a lambskin, the outside thick cotton, therefore overall is a far more rigid sleeping bag than my daughter was used to from Merino Kids. 24 months old, she moves a lot in her sleep, it is difficult for he to turn/sleep on the side and wakes up. Lateral pop-ups close very tight, although she is very slim. A photo of the inside on the website would have been very useful. (Posted on 08/11/2016)
Best sleep bagsReview by Nora
We have been using Merino Kids sleep bags for our little one since we were given one as a present when he was born and now he was a toddler, we are still using them. It's great that Merino Kids makes larger bags for the 2-4 year old range. The winter weight bag is warm and cosy for cold autumn nights and he sleeps really well in it. Only suggestion is to be able to buy the Sleep Bag Bundle with two bags of differing weights - that would be more useful than having two of the same weight. (Posted on 23/10/2016)
I wish I had known about this sooner!Review by Nat
I recently got this as we moved house and the room gets very cold. It’s excellent and I sleep better knowing my little one is warm. I now have every weight sleeping bag and wish I had known about this brand from newborn as they are such good quality and versatile. They also don’t grow out of them as fast as other brands. I have had problems with the under arm poppers coming undone, possibly due to the weight of the bag.

Nat, 18th February 2016 – Grey & Navy Wildflower Winter Weight Go Go Bag (Posted on 18/02/2016)
Lovely product, shame about the poppersReview by JC
I was so pleased to get the sleeping bag for my son, it is gorgeous quality and he feels so snug in it. He does however toss and turn a bit in his sleep (not massively though) and unfortunately the poppers regularly come undone and he can wriggle out of it. I have used other brands before and not had this problem, bit of a shame as otherwise a lovely product.

JC, 16th February 2016 – Grey & Navy Winter Weight Wildflower Go Go Bag

Customer Service: Please could you contact our customer service team ( so we can discuss this further. (Posted on 16/02/2016)
The BestReview by Karolina
I have been using Merino Kids sleeping bags for over 4 years, I have tried other brands but Merino Kids is purely the best. I use it together with Merino vests and pyjamas and my kids were never sweaty or cold. This new Sherpa Merino bag is so cosy and warm, it’s perfect for a cold night.

Overall I love Merino Kids products and always recommend them to friends and family.

Karolina, 6th February 2016 – Grey & Navy Winter Weight Wildflower Go Go Bag (Posted on 06/02/2016)
Great quality & nice and warmReview by Bally
I have used Merino Kids sleeping bags since birth for all my 3 kids (as do most of our family and friends back home in Australia) & have always loved them. I always found them to be nice and warm without worrying about overheating. This is the first time I purchased a big (2-4 years) sleeping bag as I switched to blankets for this age for my other two children. This bag is warm & snug but also very large – big enough that my 2 year old can actually hop out of bed and walk (well shuffle really) around a bit in it if she needs to (nb I wouldn’t do it if there were stairs she could go near in it) but it means I don’t have to get up in the night and retuck her covers when she wakes up cold & untucked. As always I am very pleased with the quality & the sleeping bag was delivered very promptly. Merino Kids products are more expensive than most sleeping bags but as is generally the case you get what you pay for & these are worth every penny in my opinion.

Bally, 27th November 2015 – Winter Weight Wildflower Go Go Bag (Posted on 27/11/2015)
Lovely and cosyReview by Sol
I live in Scotland and since the autumn and winter have set in my baby’s room tends to get quite cool at night so I was looking for a sleeping bag for her that will keep her warm. I have used Merino Kids products for her since she was born and I was delighted to see that they also have a heavier weight sleeping bag now. The outside of the bag is a thick, heavy cotton in a pretty design and the inside is a lovely fleecy merino wool. It’s not terribly thick but it definitely keeps her warm and she has been sleeping well in it since we got it. I like the fact that the wool can regulate her body temperature so she will not get too hot or sweaty.

If I could improve this product I would ask if there could also be an option with arms. Even though my baby’s body is warm in this sleeping bag her hands and arms still get cold. Perhaps some zip on arms would be a good option please Merino Kids? Also, I find that the length of the bag is great and will definitely last my baby a long time as she grows, but I feel it’s a little tight across the chest. My girl is a big 7 month old and I feel the bag could be a little roomier across the chest, but I guess the fit will stop it riding up and will keep her nice and snug.

Overall another great product from Merino Kids and I would definitely recommend it to parents looking for a sleeping bag to keep their little ones warm across the winter.

Sol, 9th November 2015 – Winter Weight Wildflower Go Go Bag (Posted on 09/11/2015)

Write Your Own Review

You're reviewing: Winter Weight Go Go Bag

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars


Stock permitting, we aim to dispatch all orders within 1 working day. In the event that an item is temporarily out of stock, we will notify you of the delay and dispatch it as soon as it arrives back in stock.

For UK Standard delivery, orders should arrive with customers within 3 working days of ordering. For UK Express delivery, orders placed before midday between Monday and Friday should be delivered before 6pm on the following working day. Orders placed after midday, or on weekends and holidays, should be delivered within 2 working days.

Please note that European deliveries may take up to 8 working days to arrive and worldwide up to 10 working days depending on location. Your order may incur import charges (duty and tax).

Delivery times are not guaranteed and once your order has been dispatched, delays and lost parcels can occur. In the event of prolonged delays and non-delivery please contact us so that we can resolve this for you.

For more information visit our Delivery page.


All of our products are designed and produced with great care and attention to detail, and we hope you will be delighted with them. If for any reason you’re not, please return them unused within 30 days of purchase and we will refund or exchange them, no questions asked.

For more information visit our Returns page.

Our website uses cookies to improve your shopping experience. If you continue to use our website, we'll assume that you're happy about this. To learn more about how we use cookies, see more information.
Privacy Policy