A closer look at St. Genève, fill power, construction, and how to choose a duvet that truly suits the way you sleep. One of the questions we hear most often in our stores is also one of the simplest: “What makes one down duvet better than another?” It’s a fair question. From the outside, most duvets look remarkably alike: white fabric, soft filling, and neat stitching. The differences are largely hidden, and they don’t really reveal themselves until you live with the duvet night after night. That’s why the maker matters. St. Genève, a family-run company in British Columbia, has spent more than fifty years concentrating on down. It isn’t a general bedding company that happens to make a few duvets. Down is the heart of what they do, and that shows up in details that affect warmth, weight, breathability, and how well a duvet holds up over time. Why specialization matters Down is a natural material, and no two grades behave exactly the same way. The finest clusters are light, resilient, and able to trap a surprising amount of warmth without creating a heavy bed. But selecting good down is only part of the job. It must also be properly cleaned, sorted, enclosed, and distributed so that it can loft freely and stay where it belongs. A specialist learns to pay attention to all of those things. The fabric must be tightly woven enough to contain the fill, but breathable enough that the duvet doesn’t feel clammy. The internal construction must prevent cold spots without compressing the down. Even the weight of the shell matters, because a beautiful high-loft fill can be defeated by a cover that is too heavy. These aren’t glamorous details, but they’re the ones you feel at three o’clock in the morning. Eiderdown and the value of the difficult work At the rarest end of St. Genève’s work is genuine Canadian eiderdown. It is gathered by hand from the nests of wild eider ducks after the down is naturally left behind, without disturbing the birds. St. Genève sources its eiderdown from a wildlife sanctuary on the St. Lawrence River, and a portion of each purchase supports the ducks and the habitat they return to. Most people will never own an eiderdown duvet, and they certainly don’t need one in order to sleep well. But it tells you something about the maker. A company capable of handling an exceptionally scarce and delicate material develops a level of judgment that carries through the rest of its collection. The point isn’t rarity for rarity’s sake. The point is mastery. What good construction looks like When comparing down duvets, look beyond fill power and ask how the duvet is made. St. Genève uses sealed baffle-box construction in many of its duvets. Instead of sewing the top and bottom fabrics directly together, narrow fabric walls create individual chambers. Those walls give the down room to rise fully while helping keep it evenly distributed across the bed. That matters because a duvet should warm you evenly. If the fill migrates to the edges or becomes compressed along sewn-through lines, you can end up with cool areas even when the duvet contains excellent down. Pillows have their own construction questions. Chambered designs help hold the fill in place so the pillow feels more consistent through the night. Cleaning and certification matter, too, especially for people who worry that down itself may bother them. Properly washed and prepared down is very different from poorly processed fill. A quick word about fill power Fill power is one useful way to compare down, but it is often misunderstood. It measures loft: how much space a given amount of down occupies. Higher fill power generally means larger, more resilient clusters that can provide warmth with less weight. That does not mean everyone should automatically choose the highest number. Climate, bedroom temperature, body temperature, and personal preference all matter. Some sleepers want a light duvet that barely seems to touch them. Others like a little more substance. A very lofty down can also be made in different warmth levels, so fill power and warmth are related, but they are not the same thing. Three other points in the St. Genève collection St. Genève offers several grades, which makes it possible to choose according to comfort and budget rather than simply chasing the most expensive option. Heirloom uses 600 fill power Canadian goose down beneath a soft cotton shell. It is an approachable introduction to a well-made down duvet: comfortable, light, and built with the same attention to construction as the higher grades. St. Lawrence, available exclusively through Linen Society, uses 900 fill power free-range Canadian goose down from the Saskatchewan plains. It is covered in a breathable German Tencel-cotton batiste and made with sealed baffle boxes. This is the duvet many of our clients return to because it offers exceptional loft without feeling showy or excessive. Europa sits at the top of the collection, with 1,000 fill power mature Polish goose down and a German cotton jacquard shell. It is remarkably lofty and light, intended for the sleeper who wants the highest level of refinement St. Genève offers. How to choose the right duvet The best duvet isn’t necessarily the warmest or the one with the highest fill power. It is the one that matches the room and the sleeper. Before choosing, think about a few practical questions: Do you tend to sleep warm or cold? Is your bedroom heated consistently, or does the temperature change with the seasons? Do you prefer a duvet that feels nearly weightless, or one with a little more presence? Will you use one duvet year-round, or change warmth levels between summer and winter? These questions usually tell us more than a product label ever could. In the store, we also encourage people to handle the duvets. Loft, drape, shell fabric, and weight are easier to understand with your hands than from a list of specifications. What goes beneath it A good duvet deserves a cover and sheeting that allow it to breathe. St. Genève’s Capri Sateen is woven from 300-thread-count, 100 percent Giza Egyptian cotton. It has a smooth hand and a subtle tuck-pleat detail at the cuff, but the practical advantage is its balance: soft and polished without being overly heavy. You don’t need to match every element of the bed by brand. What matters is that the duvet cover is not so dense or weighty that it suppresses the loft you paid for, and that the sheets feel comfortable against your skin. A bed works best when each layer supports the next. The pleasure of understanding what you’re sleeping under Anyone can make a bed look inviting for a photograph. The more interesting question is how it feels after years of use. That’s where careful sourcing, thoughtful construction, and decades of experience begin to matter. Learning about down doesn’t mean you need to become an expert or buy the rarest duvet in the room. It simply gives you the language to notice the differences and choose with confidence. There’s real pleasure in knowing why something feels good, why it lasts, and why a maker’s attention to detail can make an ordinary night’s sleep so much better. Any questions? Our in-house designers have naturally gravitated toward St. Genève for these exact reasons, and we love to demonstrate. Stop by any of our stores to feel firsthand the quality difference brought by 50 years of dedication to down craftsmanship.