{"id":2046,"date":"2024-01-01T20:19:29","date_gmt":"2024-01-01T19:19:29","guid":{"rendered":"https:\/\/mindthebed.com\/which-comforter-is-the-warmest\/"},"modified":"2024-12-30T19:28:31","modified_gmt":"2024-12-30T18:28:31","slug":"which-comforter-is-the-warmest","status":"publish","type":"post","link":"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/","title":{"rendered":"Which duvet is the hottest?"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Content:<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #003f73;color:#003f73\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #003f73;color:#003f73\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/#Which_warmth_class_of_comforters_is_the_warmest\" >Which warmth class of comforters is the warmest?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/#The_technical_explanation_of_heat_classes\" >The technical explanation of heat classes<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/#What_is_a_Tog\" >What is a Tog?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/#What_is_fill_power\" >What is fill power?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/#What_is_the_impact_of_padding_on_the_heat_experience_of_a_duvet\" >What is the impact of padding on the heat experience of a duvet?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/#How_does_bedroom_temperature_affect_your_choice_of_duvet\" >How does bedroom temperature affect your choice of duvet?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/#Sleeping_with_a_window_open\" >Sleeping with a window open?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mindthebed.com\/en\/which-comforter-is-the-warmest\/#Which_duvet_is_hottest_conclusion\" >Which duvet is hottest: conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_warmth_class_of_comforters_is_the_warmest\"><\/span>Which warmth class of comforters is the warmest?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>Which duvet is the hottest? The answer to this question is seemingly very simple. After all, comforters from heat class 1 are seemingly always the warmest. However, before you get busy with this information, it is best to read on because there is more than just heat.  <\/p>\n\n<p>Thus, ambient temperature, the insulation of your bedroom, the properties of a quilt and your personal preferences also play a very powerful role.\nDive into the wonderful world of duvet offerings and the theoretical explanation of how heat classes are created? <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_technical_explanation_of_heat_classes\"><\/span>The technical explanation of heat classes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>The classification below divides insulation capacity into 4 heat classes. We look for the thermal insulation of a unit area. In technical jargon, we call this the thermal resistance. In England, the so-called <a title=\"Tog explanation via Wikipedia\" href=\"https:\/\/en.wikipedia.org\/wiki\/Tog_(unit)\" target=\"_blank\" rel=\"noopener\">Tog <\/a>was developed for this purpose. In the US, this insulation is expressed in Clo.    For your information, 1 clo = 1.55 Tog. Specific to down, we also look at fill power.<\/p>\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Heat Class<\/strong><\/td><td><strong>Ambient temperature outside<\/strong><\/td><td><strong>Seasons<\/strong><\/td><\/tr><tr><td>Heat Class 1<\/td><td>Average 4\u00b0C or lower<\/td><td>Very cold winters (11 &#8211; 13.5 Tog)<\/td><\/tr><tr><td>Heat Class 2<\/td><td>Average 8\u00b0C<\/td><td>Cool winters and autumn nights (8 &#8211; 11 Tog)<\/td><\/tr><tr><td>Heat Class 3<\/td><td>Average 12\u00b0C<\/td><td>Mild winters and spring and autumn nights (6 &#8211; 8 Tog)<\/td><\/tr><tr><td>Heat Class 4<\/td><td>Average 16\u00b0C or higher<\/td><td>Warm summer nights (2.5 &#8211; 4 Tog)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_Tog\"><\/span>What is a Tog?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Tog is a unit of thermal resistance used to measure and classify the insulating properties of comforters.\nA higher Tog number represents better insulation and more warmth.\nTog values usually range from 1 (very light) to 15 (very warm).\nNice and easy right if you can just measure thermal resistance?\nYes indeed!\nHowever, the story is not quite complete because this does not measure whether a duvet is insulating.\nEspecially for down comforters, for example, this insulation value, filling power or CUIN value is very valuable.        <\/p>\n\n<p>The Tog value is very well known in Britain and the British Isles, and is actually rarely used in the Low Countries and by extension Western Europe. A lot of producers create their own interpretation. This makes it less easy for you, as an interested consumer, to compare properly. So often a warm duvet is called a 4-season duvet. These quilts can be used together or as individual quilts thanks to attached &#8220;cutters&#8221; or buttons. A warmer section for the in-between seasons and a lighter section for summer. Together, they then form the very warm winter comforter.   <\/p>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_fill_power\"><\/span>What is fill power?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Fill power is a scientific yardstick to measure the quality of down.\nThe higher the fill power, called the CUIN value, the better the quality of a duvet.\nSimply put: at the same fill weight, down with a high CUIN value retains more heat.\nMore air is retained and that insulates better.\nYou also see more volume and often that down is much fluffier.\nThe quilt is noticeably lighter with the same thermal performance.\nIn this example, the best quilt is the one with the highest heat-insulating property at the lowest weight.      <\/p>\n\n<p>Here too we make a small remark, because this value is also approached theoretically.\nIn ideal conditions, without humidity, the test is performed several times and then the average is calculated.\nHowever, the humidity of your bedroom is ideally 50% on average.\nThe moisture in real conditions will cause the thermal insulation to be lower.   <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_impact_of_padding_on_the_heat_experience_of_a_duvet\"><\/span>What is the impact of padding on the heat experience of a duvet?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>As you can read, it seems easy to determine thermal resistance and filling power and the stocking is complete.\nHowever, we also immediately gave our comments on the results.\nAnd then there are also big differences between, for example, comforters made of natural hair (wool, etc.), down and feathers, silk, bamboo, Lyocell and synthetic fibers.\nBecause all these materials also have other properties.   <\/p>\n\n<p>A duvet of Icelandic Eider down is one of the most exclusive down coming from the Eider duck. The video below also shows the unlikely fill power of this down. Immediately you also understand that it is not the species that determines the down quality. Goose down is no better than duck down, obviously if you compare both within their fill power and other down characteristics.   <\/p>\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\"> \n<iframe loading=\"lazy\" title=\"Why Icelandic Eiderdown Is So Expensive | So Expensive\" width=\"1080\" height=\"608\" src=\"https:\/\/www.youtube.com\/embed\/Y_ozeboWz-0?feature=oembed\"  allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n <\/div><\/figure>\n\n<p>This leads them to react differently with perspiration or with excess heat.\nIn other words, what are its moisture-regulating, ventilating and heat-regulating properties?\nAnd are they hygienic to sleep under, in other words are they washable or at least cleanable?\nAnd what about allergies?\nAre they hypoallergenic by nature or do you really need to wash at high temperatures?    <\/p>\n\n<figure class=\"wp-block-image aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"427\" src=\"https:\/\/i0.wp.com\/mindthebed.com\/wp-content\/uploads\/2023\/12\/young-sick-woman-with-flue-sitting-sofa-home-studio-covered-with-knitted-warm-clothes-illness-influenza-pain-concept-relaxation-home-healthcare-concepts-normaal.jpeg?resize=640%2C427&#038;ssl=1\" alt=\"Being cold under duvet\" class=\"wp-image-1734\" srcset=\"https:\/\/mindthebed.com\/wp-content\/uploads\/2023\/12\/young-sick-woman-with-flue-sitting-sofa-home-studio-covered-with-knitted-warm-clothes-illness-influenza-pain-concept-relaxation-home-healthcare-concepts-normaal.jpeg 640w, https:\/\/mindthebed.com\/wp-content\/uploads\/2023\/12\/young-sick-woman-with-flue-sitting-sofa-home-studio-covered-with-knitted-warm-clothes-illness-influenza-pain-concept-relaxation-home-healthcare-concepts-normaal-480x320.jpeg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 640px, 100vw\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_does_bedroom_temperature_affect_your_choice_of_duvet\"><\/span>How does bedroom temperature affect your choice of duvet?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>The ideal bedroom temperature is about 18\u00b0C.\nThis ideal temperature applies to every season.\nSo that means also during the colder autumn and spring nights and especially during a cold winter.\nA lot of people choose to leave the windows open in the bedroom all year round.\nIn terms of humidity and heat, that could be better.    <\/p>\n\n<p>During cold days, ventilate your bedroom vigorously and long enough in the morning.\nThen close your windows and open your bedroom door.\nThis way you don&#8217;t let the heat get lost and a bedroom usually warms up to about 18\u00b0C.\nJust before you go to sleep, put your windows back ajar or open them.\nYou crawl into a comfortable bed and your bedding is also well-dried during the day.      <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sleeping_with_a_window_open\"><\/span>Sleeping with a window open?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>If you sleep with a window open, then you know you can safely use an extra warm duvet.\nAre you cold easily?\nThen down comforters or class 1 wool or synthetic winter comforters are a good choice.\nIf you&#8217;re always too hot, consider heat-regulating comforters such as camel hair, (Texeler) sheep&#8217;s wool or mixed natural hair comforters.     <\/p>\n\n<p>If you want to be able to work with 1 duvet in all seasons, there is only 1 choice: a 4-season duvet.\nYou knot the two comforters together to make one thick duvet.\nIf you remove the lightest duvet, it is perfect for warm summer nights.\nThe one that remains is rather medium warm and fine to keep you warm during spring and fall.   <\/p>\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/mindthebed.com\/en\/electric-blankets-the-way-to-save-energy\/\"><strong>Also read: Saving energy with electric blankets<\/strong><\/a><\/div>\n<\/div>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_duvet_is_hottest_conclusion\"><\/span>Which duvet is hottest: conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>A heat class 1 is clearly the warmest variety.\nBut look a little further than just the heat classes.\nTake into account the bedroom temperature.\nIt is determined greatly by the insulation of your home, sleeping with windows open or closed, and whether you heat the bedroom lightly during the winter.     <\/p>\n\n<p>Also keep in mind the specific properties of the fillings used for comforters.\nDown is generally highly insulating and therefore warmer, while natural hair such as wool comforters are highly moisture regulating and often regulate heat better. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Which warmth class of comforters is the warmest? Which duvet is the hottest? The answer to this question is seemingly very simple. After all, comforters from heat class 1 are seemingly always the warmest. However, before you get busy with this information, it is best to read on because there is more than just heat&#8230;.<\/p>\n","protected":false},"author":36,"featured_media":2025,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[55],"tags":[],"class_list":["post-2046","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-improve-my-duvet"],"featured_image_src":"https:\/\/i0.wp.com\/mindthebed.com\/wp-content\/uploads\/2023\/12\/woman-man-sitting-bed-top-view-normaal.jpeg?fit=640%2C427&ssl=1","author_info":{"display_name":"Marco Achtereekte","author_link":"https:\/\/mindthebed.com\/en\/author\/marco-achtereekte\/"},"_links":{"self":[{"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/posts\/2046","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/users\/36"}],"replies":[{"embeddable":true,"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/comments?post=2046"}],"version-history":[{"count":11,"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/posts\/2046\/revisions"}],"predecessor-version":[{"id":6694,"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/posts\/2046\/revisions\/6694"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/media\/2025"}],"wp:attachment":[{"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/media?parent=2046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/categories?post=2046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mindthebed.com\/en\/wp-json\/wp\/v2\/tags?post=2046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}