Woolino 4 Season Classic Baby Sleep Bag

Merino wool and organic cotton sleep bag meant for year-round use in three sizes up to 36 months (per the maker).

  • $79List price
  • 3Sizes

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How the 4 Season Classic Baby Sleep Bag stacks up

Against the 39 sleep sacks we track. The shaded band is where the middle half of them fall; the dot is this one.

Price$7929th lowest price of 31

Above the typical range for sleep sacks ($34.99 to $58).

This one
$20middle $48$109

What sets the 4 Season Classic Baby Sleep Bag apart

Measured against the 39 sleep sacks we compare, from each maker's published specs.

Next to its closest matches

Size chart

SizeAge
0-6 Months0–6 months
6-18 Months6–18 months
18-36 Months18–36 months

As Woolino publishes it.

Listed features

  • Three sizes

Worth checking

  • List price $79
  • No weight ranges listed

Where to buy the 4 Season Classic Baby Sleep Bag

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good to know
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
  • Swaddling and safe sleep: see the AAP's swaddling page and guide to safe sleep. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

Woolino 4 Season Classic Baby Sleep Bag
TypeSleep sack
List price$79
Sizes0-6 Months: 0–6 months
6-18 Months: 6–18 months
18-36 Months: 18–36 months
Closure2-way zipper with zipper guards
MaterialAustralian merino wool lining, organic cotton outer (per the maker)
Machine washableYes

Compare the 4 Season Classic Baby Sleep Bag with

How each closest rival differs from the 4 Season Classic Baby Sleep Bag, from the makers' specs.

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4 Season Classic Baby Sleep Bag: questions answered

From Woolino's published specs, last checked 2026-11-02.

What sizes does the Woolino 4 Season Classic Baby Sleep Bag come in?

Per the maker: 0-6 Months (0 to 6 months); 6-18 Months (6 to 18 months); 18-36 Months (18 to 36 months). Check the maker's size chart.

What's the difference between the Woolino 4 Season Classic Baby Sleep Bag and the Kyte Baby Slumber Bag?

By the maker specs, the Slumber Bag lists for $4 less. See them side by side.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.

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Where these specs come from

Last checked 2026-11-02. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.