01Gold Standard
4 Season Ultimate Merino Wool Sleep Bag
$109
merino-wooltemperature-regulatingNOT-weighted
Merino wool regulates temperature year-round (no overheating). OEKO-TEX Standard 100 Class 1 (safest for babies). NOT weighted—AAP warns weighted sleep sacks are unsafe.
Quality Score12/12
Purity
Evidence
Transparency
Value
Strong Evidence
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Ingredients & Purity
Australian merino wool lining, GOTS organic cotton outer. No synthetic fills or weighted elements.
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Scientific Evidence
AAP and Consumer Reports warn against weighted sleep products. Wool naturally thermoregulates—prevents overheating (SIDS risk factor).
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Brand Transparency
OEKO-TEX Standard 100 Class 1 (infant-safe). GOTS certified cotton.
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Value Assessment
$109. Fits 2 months to 2 years—exceptional longevity. One sack replaces many.
Why Not Alternatives?
Kyte Baby is bamboo (less temperature-regulating). Nested Bean and Dreamland are WEIGHTED—AAP Consumer Reports say these are dangerous and unregulated. Halo is polyester.