{"id":84492,"date":"2026-09-05T01:41:45","date_gmt":"2026-09-04T23:41:45","guid":{"rendered":"https:\/\/kart.no\/produkt\/gruezi-bag-sleeping-bag-warmer-extra-warmth-for-your-sleeping-bag\/"},"modified":"2026-09-05T01:45:15","modified_gmt":"2026-09-04T23:45:15","slug":"gruezi-bag-sleeping-bag-warmer-extra-warmth-for-your-sleeping-bag","status":"publish","type":"product","link":"https:\/\/kart.no\/en\/produkt\/gruezi-bag-sleeping-bag-warmer-extra-warmth-for-your-sleeping-bag\/","title":{"rendered":"Gr\u00fcezi Bag Schlafsackwarmer \u2013 extra warmth for your sleeping bag"},"content":{"rendered":"
\n
\n Extra warmth<\/span>
\n Up to +10 \u00b0C<\/strong>
\n Depending on the combination<\/small>\n <\/div>\n
\n Used alone<\/span>
\n +16 to +24 \u00b0C<\/strong>
\n Gr\u00fcezi Bag recommendation<\/small>\n <\/div>\n
\n Size<\/span>
\n 175 \u00d7 73 cm<\/strong>
\n Height approx. 165\u2013195 cm<\/small>\n <\/div>\n
\n Weight<\/span>
\n Approx. 450 g<\/strong>
\n Excl. stuff sack<\/small>\n <\/div>\n
\n Packed volume<\/span>
\n 3.8 l<\/strong>
\n Approx. \u00d8 16 \u00d7 19 cm<\/small>\n <\/div>\n
\n Insulation<\/span>
\n ARL Air-Fiber-3D<\/strong>
\n Synthetic \u00b7 80 g\/m\u00b2<\/small>\n <\/div>\n<\/div>\n

Extra warmth when the temperature drops<\/h2>\n

Gr\u00fcezi Bag Schlafsackwarmer<\/strong> is a lightweight and compact insulated liner designed to add extra warmth to an existing sleeping bag. Instead of carrying an additional or heavier sleeping bag, the Schlafsackwarmer can be placed inside your sleeping bag as an extra insulating layer.<\/p>\n

Depending on the sleeping bag, sleeping mat and conditions, Gr\u00fcezi Bag states that it can provide up to 10 \u00b0C of additional warmth<\/strong>. Weighing approximately 450 g with a packed volume of just 3.8 l, it is a practical way to extend the range of the sleeping bag you already own.<\/p>\n

Up to 10 \u00b0C of additional warmth<\/h3>\n

The Schlafsackwarmer uses ARL Air-Fiber-3D<\/strong>, a synthetic insulation with a fill weight of 80 g\/m\u00b2. The insulating layer traps warm air around the body and helps reduce heat loss inside the sleeping bag.<\/p>\n

According to Gr\u00fcezi Bag, the Schlafsackwarmer can increase the thermal performance of an existing sleeping system by up to 10 \u00b0C<\/strong>, depending on the combination.<\/p>\n

This should not be interpreted as a fixed temperature shift for every sleeping bag. The actual effect depends on factors including the sleeping bag used, the combination of sleeping mats, ambient conditions and individual sensitivity to cold.<\/p>\n

An easy way to extend the range of your sleeping bag<\/h3>\n

For many trips, you do not necessarily need another sleeping bag \u2013 you may simply need some additional insulation. The Schlafsackwarmer allows you to supplement your existing sleeping bag when colder nights are expected or when you want some extra temperature margin on your trip.<\/p>\n

Its universal design allows it to be used with almost any sleeping bag<\/strong>. In Gr\u00fcezi Bag sleeping bags with dedicated Feater loops, it can also be secured using the integrated buttons.<\/p>\n

2-in-1 \u2013 can also be used on its own<\/h3>\n

The Schlafsackwarmer is not limited to use as an insulating liner. In warm conditions, it can also be used on its own as a lightweight summer or travel sleeping bag<\/strong>.<\/p>\n

Gr\u00fcezi Bag gives a practical recommended range of approximately +16 to +24 \u00b0C<\/strong> when used on its own. This makes it suitable for warm summer nights, camping, hut stays, travel and other situations where a conventional sleeping bag may be unnecessarily warm.<\/p>\n

Synthetic insulation for changeable conditions<\/h3>\n

ARL Air-Fiber-3D insulation is made from 100% polyester<\/strong>. The synthetic fibre insulation is easy to care for, dries relatively quickly and is suitable for changeable and humid conditions.<\/p>\n

This makes the Schlafsackwarmer a practical additional insulating layer for hiking and camping trips where temperature and humidity can vary.<\/p>\n

Adjustable drawstring helps retain warmth<\/h3>\n

An adjustable drawstring with stopper<\/strong> allows the Schlafsackwarmer to be drawn closer around the body below the shoulders. This helps reduce the amount of warm air escaping through the opening.<\/p>\n

It is a simple but useful feature when the Schlafsackwarmer is used as an additional insulating layer on colder nights.<\/p>\n

Compact enough to carry as an extra layer<\/h3>\n

The Schlafsackwarmer weighs approximately 450 g<\/strong> excluding the stuff sack and packs down to approximately \u00d8 16 \u00d7 19 cm<\/strong>. Its packed volume is just 3.8 l<\/strong>.<\/p>\n

This makes it considerably easier to carry than an additional sleeping bag and particularly useful on trips where you are uncertain how low the temperature may fall overnight.<\/p>\n

Internal pocket<\/h3>\n

A practical internal pocket<\/strong> provides space for valuables and other small items you prefer to keep close at hand during the night.<\/p>\n

OEKO-TEX\u00ae STANDARD 100<\/h3>\n

The Schlafsackwarmer is certified according to OEKO-TEX\u00ae STANDARD 100<\/strong>, meaning its textile components have been tested for harmful substances in accordance with the certification standard.<\/p>\n

Technical specifications<\/h3>\n
    \n
  • Product:<\/strong> Gr\u00fcezi Bag Schlafsackwarmer<\/li>\n
  • Type:<\/strong> insulated sleeping bag liner \/ lightweight travel sleeping bag<\/li>\n
  • Function:<\/strong> additional insulating layer inside a sleeping bag or use on its own<\/li>\n
  • Additional warmth:<\/strong> up to approx. 10 \u00b0C, depending on the combination and conditions<\/li>\n
  • Recommended range when used alone:<\/strong> approx. +16 to +24 \u00b0C<\/li>\n
  • Size:<\/strong> approx. 175 \u00d7 73 cm<\/li>\n
  • Recommended height:<\/strong> approx. 165\u2013195 cm for a person of average build<\/li>\n
  • Weight:<\/strong> approx. 450 g excl. stuff sack<\/li>\n
  • Packed size:<\/strong> approx. \u00d8 16 \u00d7 19 cm<\/li>\n
  • Packed volume:<\/strong> approx. 3.8 l<\/li>\n
  • Insulation:<\/strong> ARL Air-Fiber-3D<\/li>\n
  • Filling:<\/strong> 100% polyester<\/li>\n
  • Fill weight:<\/strong> 80 g\/m\u00b2<\/li>\n
  • Outer and inner fabric:<\/strong> lightweight and breathable 20D Soft Nylon 400T<\/li>\n
  • Outer\/inner fabric material:<\/strong> 100% polyamide<\/li>\n
  • Adjustment:<\/strong> drawstring with stopper below the shoulders<\/li>\n
  • Internal pocket:<\/strong> yes<\/li>\n
  • Fastening:<\/strong> buttons for sleeping bags with Feater loops<\/li>\n
  • Compatibility:<\/strong> suitable for use with almost any sleeping bag<\/li>\n
  • Certification:<\/strong> OEKO-TEX\u00ae STANDARD 100<\/li>\n
  • Country of origin:<\/strong> China<\/li>\n
  • Customs tariff:<\/strong> 94043000<\/li>\n<\/ul>\n

    Product data<\/h3>\n
      \n
    • SKU:<\/strong> 8160-2005-195<\/li>\n
    • EAN:<\/strong> 4260595260739<\/li>\n
    • Size:<\/strong> One Size<\/li>\n
    • Colour:<\/strong> Light Grey<\/li>\n<\/ul>\n

      Material composition<\/h3>\n

      \nOuter fabric:<\/strong> 100% polyamide.
      \nInner fabric:<\/strong> 100% polyamide.
      \nFilling:<\/strong> 100% polyester.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Make your sleeping bag warmer without having to switch to a heavier model.<\/strong> The Gr\u00fcezi Bag Schlafsackwarmer is a lightweight and compact 2-in-1 solution with synthetic ARL Air-Fiber-3D insulation. When used inside an existing sleeping bag, it can provide up to 10 \u00b0C of additional warmth<\/strong>, depending on the combination and conditions.<\/p>\n

      The Schlafsackwarmer can also be used on its own as a lightweight summer or travel sleeping bag, with Gr\u00fcezi Bag\u2019s practical recommended range of approximately +16 to +24 \u00b0C<\/strong>. The synthetic insulation is easy to care for, dries relatively quickly and performs well in changeable and humid conditions.<\/p>\n

      Weighing just approx. 450 g<\/strong> with a packed volume of 3.8 l<\/strong>, it is easy to carry as an extra layer of insulation on hiking and camping trips.<\/p>\n","protected":false},"featured_media":84490,"comment_status":"open","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":""},"product_brand":[1724],"product_cat":[1720],"product_tag":[],"class_list":["post-84492","product","type-product","status-publish","has-post-thumbnail","product_brand-gruezi-bag","product_cat-sleeping-bag-accessories","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"composite_virtual":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"acf":[],"yoast_head":"\nGr\u00fcezi Bag Sleeping Bag Warmer | Up to 10 \u00b0C of extra warmth<\/title>\n<meta name=\"description\" content=\"Make your sleeping bag warmer with the Gr\u00fcezi Bag Schlafsackwarmer. 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The Gr\u00fcezi Bag Schlafsackwarmer is a lightweight and compact 2-in-1 solution with synthetic ARL Air-Fiber-3D insulation. When used inside an existing sleeping bag, it can provide up to 10 \u00b0C of additional warmth, depending on the combination and conditions. 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