Sleep Bag Blue 2 month - 24 months
Sleep Bag Blue 2 month - 24 months
Sleep Bag Blue 2 month - 24 months
Sleep Bag Blue 2 month - 24 months
Sleep Bag Blue 2 month - 24 months

Sleep Bag Blue 2 month - 24 months

Regular price $99.99

Our Woolino Ultimate 4 Season Baby Sleep Bags are designed so that you need only one – regardless of the season, regardless of your baby’s age.

How do we do that?

The merino wool we use is supremely breathable, keeping your baby warm when it’s cold and cool when it’s hot. That temperature regulation means that your baby will sleep comfortably throughout the night, year-round – and that means a better night’s sleep for you too.

Our universal sizing means that it will fit a baby from 2 months to 2 years. This consistency in sleepwear will allow your baby to always associate the comfort of their sleep sack with a good night’s sleep.

So, rather than buying a different sleep sack for different seasons, as well as buying larger ones as they grow, you just need one Woolino sleep bag for your baby.

  • 100% Natural 
    Pure silky-soft hypoallergenic merino wool lining and the finest organic cotton outer.
  • 4 Season use 
    Unlike most of the sleep sacks that come in either winter or summer weight/TOG rating, the Woolino 4 Season Sleep Bag can be used year-round. It’s suitable for any room temp. 63-77F (17-25C). Because of Merino’s unique ability to regulate body temperature, it keeps your baby warm when it's cold and cool when it's hot.
  • Grows with your baby 
    It has a universal size so it can be safely used for babies 2 months up to 2 years old. And for smaller babies, simply close the underarm snaps to adjust the fit.
  • Excellent value 
    With Woolino Ultimate 4 Season Sleep Bag, you don’t have to buy a different sleep sack every few months. It is the only baby sleep sack your baby will need, in winter or summer, until they turn two years old.
  • Designed to be practical 
    It features double shoulder snaps and a two-way side zipper, so it opens up completely flat for easy dressing without waking the baby! For easy nighttime diaper changes, you can open the bottom only. It also has zipper-pull guards to protect baby's skin and to prevent them from chewing on the zipper pull.
  • Travel friendly 
    A closable seat-belt opening allows for easy transfer between stroller, car seat and crib, so you can keep your baby’s sleep routine intact while on the go.
  • Easy care 
    In addition to Merino being naturally anti-bacterial and odor repellent, Woolino sleeping bags are machine washable and can be tumble dried on low heat.
  • Reduces the risks of SIDS 
    It is a healthy and safe alternative to blankets –helps your baby stay covered through the night and reduces the risk of suffocation, as fabric stays clear of their face. What’s more, the exceptionally breathable Merino wool regulates body temperature and so prevents overheating – a risk factor for SIDS. The sleep sack also promotes back sleeping.
  • Naturally fire resistant 
    Wool is naturally flame resistant and the safest fiber to have next to your baby’s body. And of course, Woolino sleep bags meet all US CPSC children safety requirements.
  • Certifications 
    Woolino 4 Season Sleep Bags are made with Woolmark and Oeko-Tex 100 certified merino wool and GOTS and Oeko-Tex 100 certified organic cotton. We use nickel, lead and phthalates free YKK snaps and zippers, which are also Oeko-Tex 100 certified.
  • Awards 
    #1 rated and #1 selling Merino wool baby sleep bag in US and Canada and Winner of Mom's Choice Award, Creative Child's 2012 Top Choice of the Year Award and Green Scene Mom Award 2016.
  • Free Nursery Thermometer with a dressing guide included.




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