Duvets

How to Choose a Premium Duvet — Fill Materials, Heat Classes, and What Each One Does

A duvet is the most personal piece of bedding in the bedroom — it regulates body temperature through every hour of sleep, and getting the fill material and warmth level wrong has a direct effect on sleep quality regardless of how good the mattress beneath is. For anyone looking at a premium duvet in Tbilisi, Sleep Gallery at 24 Irakli Abashidze Street, Vake, carries a curated selection from four European manufacturers: Dauny from Switzerland, Hefel from Austria, Traumina from Germany, and Falkenreck, also from Germany. The products displayed above represent a selection of what is available — the complete range of duvet fills, warmth classes, and sizes can be experienced in person at the Vake showroom.

Understanding Heat Classes

European duvets are categorised by warmth class — a standardised system that indicates how much insulation a duvet provides. Heat class 1 (WK1) is lightest, designed for summer or warm sleepers. Heat class 2 (WK2) is the spring and autumn range — a balanced insulation for the transitional months. Heat class 3 (WK3) is full winter warmth. The duvet’s fill material interacts with its warmth class to produce the specific sleeping climate — two WK2 duvets with different fills will feel differently and regulate temperature differently across a full night.

Dauny — Swiss Goose Down, Produced in Switzerland

Dauny is the premium duvet line of Billerbeck Schweiz AG, manufactured in Fischbach-Göslikon, Switzerland. Billerbeck’s Swiss operation traces its origins to a family workshop opened in Zurich in 1922, and Dauny’s products are made and quality-controlled entirely to Swiss standards — a meaningfully higher benchmark than standard European certification.

Sleep Gallery carries two Dauny Geneva duvets, both filled with 100% European white goose down — Class 1 quality, sourced from fully mature geese — and covered in Swiss Batiste, a fine-woven breathable cotton that wicks moisture away rather than trapping it. The Dauny Geneva Down Light Duvet is a summer-weight option for warm sleepers or Tbilisi’s warmer months. The Dauny Geneva 4 Season Duvet takes a different approach — two connectable duvets in one, giving you a light layer, a medium layer, and a combined winter weight from a single purchase. Both are Nomite® certified, meaning they are tested and confirmed suitable for house dust mite allergy sufferers. Dauny duvets carry a 5-year guarantee.

Hefel — Austrian Pioneer of TENCEL Bedding Since 1907

Hefel was founded in 1907 in Schwarzach, in Austria’s Vorarlberg region, and is today run by Dr. Dietmar Hefel in the fourth generation. The company holds a specific distinction that matters for understanding their products: Hefel is the world’s only fully integrated bedding manufacturer — producing from the raw fibre through yarn, fabric weaving, filling, and final quilting entirely under one roof in Austria. Every Hefel duvet is individually quilted on tailor-made frames.

In 1999, Hefel produced the world’s first duvet made entirely from TENCEL™ Lyocell — a natural fibre derived from wood pulp, produced by Lenzing AG in Austria. TENCEL’s nanofibril structure gives it moisture management properties that surpass both cotton and down: it absorbs moisture quickly and releases it efficiently, maintaining a dry sleeping environment even through the night’s natural perspiration. Hefel has been TENCEL’s leading bedding processor since the fibre’s introduction.

The Hefel KlimaControl Tencel Duvet uses 100% TENCEL Lyocell filling in a premium sateen cover — precise temperature and moisture regulation in a hypoallergenic, 40°C washable construction. The KlimaControl Tencel/Cotton Duvet uses the same TENCEL Lyocell filling with a Fairtrade-certified cotton sateen cover, adding an ethical supply chain dimension to the same functional properties. Both are made in Austria.

Traumina — German Natural Fibre Duvets Since 1921

Traumina has been producing bedding by hand in Germany since 1921, operating as a Bettwaren-Manufaktur — a bedding manufactory — with all products bearing the “Made in Germany” standard. The Traumina range at Sleep Gallery covers three warmth classes across four distinct natural fill materials, making it the most varied fill selection in the collection.

For summer sleeping — heat class 1 — Traumina offers two options. The Cube Leinen WK1 uses an extra-light, high-quality linen filling. Linen is among the most breathable natural fibre fillings available: it absorbs moisture rapidly, dries quickly, and has a natural cooling character that makes it exceptionally well-suited to warm nights.

The Exclusive Bambus WK1 uses a very light bamboo and cotton blend. Bamboo fibre is highly breathable, naturally antibacterial, and moisture-wicking — a softer, more enveloping alternative to linen for those who prefer a gentler surface feel.

For spring and autumn sleeping — heat class 2 — the Exclusive Bambus WK2 offers the same natural bamboo and cotton construction at a higher insulation weight. The Novis Faser WK2 uses Traumina’s high-quality functional microfibre — a synthetic alternative for those who prefer animal-free fills without compromising on moisture management or comfort.

For winter — heat class 3 — the Cube Camel WK3 uses natural camel hair in Traumina’s cube construction. Camel hair is a premium natural insulator: it provides intense warmth while remaining remarkably lightweight, and its hollow fibre structure regulates both temperature and moisture effectively through cold nights. The cube construction channels the filling into defined chambers to prevent cold bridges forming where fill has shifted.

Falkenreck — Handmade Down Duvets From the Teutoburg Forest

Falkenreck has been producing 100% handmade down duvets in Rietberg, near Germany’s Teutoburg Forest, since the 1970s — a family business where each duvet passes through approximately 400 individual work steps from cutting and sewing to filling and stitching. The brand’s entire production is manual, with no industrial shortcuts.

Sleep Gallery carries two Falkenreck Diamond duvets, both filled with 850 CUIN Newfoundland goose down and covered in Swiss fine batiste — one of the lightest, most breathable cotton weaves available. The Falkenreck Diamond All Season Duvet combines this exceptional fill with a year-round warmth profile, making it a single duvet that works across seasons. For warmer sleepers or Tbilisi summers, the Falkenreck Diamond Light Duvet offers the same 850 CUIN down and batiste construction in a featherlight summer weight. Both are handmade in Germany and available for consultation at the Vake showroom.

Visiting the Showroom

The duvets displayed above are a selection of what Sleep Gallery carries — a broader range of fills, warmth classes, and sizes across all four brands, including the complete Falkenreck down collection, is available for consultation at the Vake showroom. Free delivery is available directly to your apartment across Tbilisi for all purchases. Visit Sleep Gallery at 24 Irakli Abashidze Street, Vake to compare fill materials in person and speak with a consultant about which warmth class suits your bedroom temperature and sleep preferences.

FAQ SECTION

Q: Where can I buy a premium duvet in Tbilisi?

Sleep Gallery at 24 Irakli Abashidze Street, Vake, Tbilisi carries premium duvets from Dauny, Hefel, Traumina, and Falkenreck — four European manufacturers covering natural goose down, TENCEL Lyocell, linen, bamboo, camel hair, and handmade German down. The products listed online represent a selection — a broader range of fills, warmth classes, and sizes is available in the showroom. Free delivery is available across Tbilisi for all purchases.

Q: What is the difference between a heat class 1, 2, and 3 duvet?

Heat class is the European standard for duvet warmth. Heat class 1 (WK1) is the lightest — designed for summer or warm sleepers who need minimum insulation. Heat class 2 (WK2) is the transitional weight — suited to spring and autumn, or year-round use in a well-heated bedroom. Heat class 3 (WK3) is full winter insulation — for cold rooms or those who need significant warmth. The right class depends on room temperature, personal heat preference, and the insulating properties of the fill material: a linen WK1 and a bamboo WK1 will produce different sleeping climates even at the same warmth class.

Q: What is TENCEL and why does Hefel use it?

TENCEL™ Lyocell is a natural fibre derived from wood pulp, produced by Lenzing AG in Austria. Its nanofibril structure — millions of tiny fibrils — absorbs moisture from the body rapidly and releases it into the surrounding air, maintaining a dry sleeping surface even through the natural perspiration of a full night. This makes it superior to cotton and comparable to down in moisture management, while being fully hypoallergenic and washable at 40°C. Hefel produced the world’s first TENCEL duvet in 1999 and is the leading TENCEL bedding processor globally.

Q: Is goose down better than synthetic or plant-based duvet fills?

Neither is categorically better — they serve different sleeper needs. Goose down offers unmatched warmth-to-weight ratio and a uniquely enveloping feel, with natural temperature regulation. It suits those who want the classic luxury duvet experience and have no down allergy. TENCEL Lyocell and plant-based fills like linen and bamboo offer superior moisture management, are fully hypoallergenic, and are typically easier to wash at home. Camel hair provides intense winter warmth with good breathability. The right fill depends on sleeping temperature, allergy status, and personal preference — a comparison of fills in person at the Sleep Gallery showroom is the most reliable way to decide.

Q: What makes Dauny a Swiss quality product?

Dauny duvets are manufactured in Fischbach-Göslikon, Switzerland, by Billerbeck Schweiz AG, and are produced and quality-controlled entirely to Swiss standards — a stricter benchmark than standard European duvet certification. The down is European Class I quality, sourced from mature geese, and processed with hygiene controls that include laboratory testing of fill power, fat content, and mixture quality for every batch. The Swiss Batiste cotton cover is down-proof, breathable, hydrophilic, and treated with Nomite® certification for dust mite allergy suitability. Each duvet carries a 5-year guarantee.

Q: What is camel hair filling and why is it good for winter?

Camel hair is a natural hollow fibre — each hair has an air-filled core that provides excellent insulation while keeping the duvet light relative to its warmth. It regulates temperature and wicks moisture effectively, making it warmer than most synthetic fills at equivalent weight. The hollow structure also allows the fibre to respond to body temperature changes across the night, releasing warmth when the body cools and allowing heat to dissipate when it rises. Traumina’s Cube Camel WK3 uses this material in a cube-quilted construction that channels the filling into defined chambers, preventing the fill from shifting and creating uninsulated cold zones.

Q: How do I choose between linen and bamboo filling in a summer duvet?

Both are heat class 1 fills suited to warm nights, but they feel different. Linen — as in the Traumina Cube Leinen WK1 — is the cooler, crisper option. It absorbs moisture very rapidly and dries quickly, making it the most effective natural fill for sleepers who run very warm. Bamboo — as in the Traumina Exclusive Bambus WK1 — is softer and more enveloping than linen, also moisture-wicking and naturally antibacterial, but with a gentler surface feel. Linen suits those who want a noticeably cool sensation; bamboo suits those who want summer weight with a softer, more traditional duvet feel.