MookieMerino 4-Season Sleep Bag


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The most luxurious baby sleep bag made of 2 layers of pure organic merino wool: natural, excellent climate management (no freezing nor overheating), antibacterial, hypoallergenic, sustainable, renewable and biodegradable.

Our award-winning sleeping bag is perfect for all 4 seasons, suitable for babies from 2 months to 24 months plus, lightweight, safe, extremely soft on the skin and unisex.

You only need this sleeping bag for 2 years: no need to scratch your head to figure out the appropriate TOG (thermal resistance of synthetic sleeping bags) and having to buy different TOG & sizes.

The award-winning MookieMerino 4-Season Sleep Bag is the perfect sleeping bag for your child or to offer as a present. It comes in a beautiful gift box, making it the perfect organic baby gift for a baby shower or newborn baby.

MookieMerino: the most luxurious baby sleep bag for your baby.

The MookieMerino 4-Season Sleep Bag has many advantages:

– Solely made with 2 layers of the best Australian merino wool
– Size: 2 months to 24 months plus
– 4 Seasons
– Certified by Woolmark for its wool quality, suitable for baby’s sensitive skin
– Certified BSCI, materials certified OEKO-TEX 100 Standard I & EU REACH
– Safe: Conforms to UK BS 8510:2009 and AS/NZS 1249:2003 standards for kids’ sleepwear safety regulations
– 2-way YKK nickel-free zipper to easily change the nappy
– Travel slot for fastening your baby in a car seat/stroller
– Helps in the prevention of hip dysplasia and SIDS
– Machine washable

Why our Merino Wool?

– Regulates your baby’s body temperature, so no freezing nor overheating, which means better sleep
– Exceptionally soft on the skin due to our rare merino wool quality
– Skin-friendly: recommended for sensitive skin (including eczema) as hypoallergenic and antibacterial
– Breathable and wicks moisture away, keeping your baby dry and warm
– Ethical: Pure wool, durable, sustainable, renewable and biodegradable
– Natural flame retardant

We really appreciate your custom and we want to make sure you are delighted with your purchase. Occasionally though, you may wish to change your mind. Please click here to review our returns policy.

Additional information




The founder, having lived in 3 continents, noticed a gap in the marketplace for a truly functional sleep bag. Also knowing the unmatchable benefits of using Extra Fine merino wool, having lived in Australia for nearly a decade, she decided to create a product uniting practicality and high-quality merino wool creating the perfect combination for baby’s comfort and parents’ peace of mind. It was of the upmost importance for the founder to create an item deemed “slow fashion” (as opposed to “fast fashion” which churns out massive amounts of cheap clothes, ultimately accelerating carbon emissions and global warming). It had to be good for the planet, the animals and babies. Hence the decision to design a product solely made of 100% non mulesed Extra Fine merino wool, creating a sleeping bag which will grow with your baby up to at least 2 years and can easily be re-used for other Mookies due to its durability. Her efforts were rewarded with a unique, truly eco-friendly and ethical product of which she is very proud: the award-winning MookieMerino 4-Season Sleep Bag.

Shipping costs

Within United Kingdom (UK) Free
Outside United Kingdom (UK) £9.99

Shipping Details

Shipping from United Kingdom (UK)