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<h2 class="bvseo-question">
How well does this bag work in below zero temps?
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<div class="bvseo-author">Asked by: Vic2</div>
<div class="bvseo-answer" data-answerid="3591850">
Hello, thank you for your inquiry. Our PEAK1&trade; 0&deg;F Mummy Down Sleeping Bag is rated for a comfort limit around 20 &deg;F (~ &ndash;6 to &ndash;7 &deg;C) and a tested lower limit of ~8 &deg;F (~ &ndash;13 to &ndash;14 &deg;C). That means for lightly sub-freezing nights (say &ndash;5 &deg;C to about &ndash;10 &deg;C) with a decent ground pad and warm base layers, you can manage a (reasonably) warm night. If temps go below &ndash;10 &deg;C, you&rsquo;re hitting the bag&rsquo;s tested limit. It could keep you alive (in ideal conditions), but expect an uncomfortable, cold-ish sleep, especially if you run cold or lack good insulation under/around you. Therefore, it&rsquo;s fine for mild to moderate winter, but not reliable for serious cold or harsh winter nights unless you add extra insulation (pad, liner, layers). If you have any more questions, please contact us using our Contact Us form on the website or through LiveChat so we can help you further. We&rsquo;re available Mon.-Fri. 9 am &ndash; 8 pm Eastern Time. Thank you! Coleman Consumer Care
<div class="bvseo-author">Answered by: Coleman® Consumer Care</div>
<div class="bvseo-pubdate">Date published: 2025-12-03</div>
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