4 Season™ Footed Sleep Bag
4 Season™ Footed Sleep Bag
4 Season™ Footed Sleep Bag
4 Season™ Footed Sleep Bag

4 Season™ Footed Sleep Bag



Only 2 left in stock

Are you worried about which weight baby sleep bag to use and whether your baby will be too hot or cold while sleeping?

With Woolino, there is no need to worry. The exceptionally breathable Merino wool naturally regulates baby's body temperature, which helps your child to sleep safely and comfortably through the night. It gives you peace of mind and a good night sleep as well.

This amazing baby sleeping bag also saves you buying different sleep sacs for different seasons - you can use it year-round.

  • 100% Natural: silky soft Australian merino wool lining & organic cotton outer
  • Merino wool regulates body temperature unlike any other fiber, keeping baby warm when it's cold and cool when it's hot
  • Can be used in all 4 seasons - suitable for room temperatures 63-77F (17-15C)
  • Foot openings allow child to sleep with feet out
  • Unzips from bottom for easy diaper changes
  • Zipper-pull guards to protect child's skin
  • Nursery thermometer with dressing guide included

Wash & Care

Machine wash on low (100°F max), use wool or mild detergent. Close zipper. Can be tumble dried on No Heat or Air Dry setting. Hang to dry whenever possible. To refresh and reduce washing, turn garment inside-out and air often.


We do not recommend sizing up. The sleep bag should be well-fitted around your child's upper body for a safe and secure fit. We suggest using our recommended sizing guidelines to find the correct size based on your child's age, height, and weight. Your baby should not be below the minimum recommended weight.

 Size Height Weight
6-18 months 26-33" (66-84 cm)
16-27 lb (7-12 kg)
18-36 months
32-39" (81-99 cm)
25-36 lb (11-16.5 kg)
3-4T 37-47" (94-120 cm) 32-46 lb (14.5-21 kg)


Made with Woolmark, Oeko-Tex 100, and RWS (Responsible Wool Standard) certified merino wool; GOTS and Oeko-Tex 100 certified organic cotton; Oeko-Tex 100 certified (tested for 100 harmful substances), nickel, lead, and phthalates free YKK snaps and zippers.

#1 rated and #1 selling merino wool baby sleep bag in US and Canada and winner of 2021 Cribsie Award, Creative Child and Baby Maternity's 2012 & 2018 Top Choice of the Year Award, 2017 Eco Excellence Award, 2016 Green Scene Mom Award, and Mom's Choice Award.

Dressing Baby Recommendations:

 Nursery temperature Additional clothing with 4 Season Basic Bag
77° F (25° C) lightweight short sleeve sleepwear
71° F (22° C) lightweight short or long sleeve sleepwear
69° F (20° C) long sleeve pajamas
65° F (18° C) long sleeve pajamas
63° F (17° C) long sleeve bodysuit + pajamas

63-68° F (18-20° C) is the recommended temperature range for baby's nursery. The above guidelines may vary for different children.

Check your baby behind the neck or on the stomach to ensure they are not too warm or cold. Checking baby's hands or face is not a good indication.