Cold Winter Double Goose Down Duvet D400 – Daunenstep

DaunenStep D400 Cold Winter: the double duvet for cold rooms

The DaunenStep D400 Cold Winter goose down duvet , measuring 250 x 200 cm , is designed to provide intense, consistent warmth on the coldest nights. The 100% down filling with a fill power of 730 CUIN guarantees excellent insulation, lightness, and superior comfort.

By purchasing on BenasciuttiCasa you receive:

• Official 10-year DaunenStep guarantee
• Original brand case
• Professional support in choosing the ideal duvet

Italian tradition and craftsmanship

DaunenStep down jackets embody the Italian tradition of down processing. Each piece is expertly constructed and quilted by hand , with tailored finishes that guarantee precision, durability, and a superior aesthetic compared to industrial products.

Batista Supersoft lining: quality, safety and comfort

The 100% Supersoft Batista cover is soft, breathable, and completely hypoallergenic . Certified anti-mite, it ensures a dry and hygienic sleep, ideal for allergy sufferers.

100% down filling – 730 CUIN

The D400 padding offers:

• high heat for cold rooms
• lightness and great natural volume
• high transpiration and dry microclimate
• superior thermal insulation

Ethics, health and safety

The feathers used do not come from live or mistreated animals . The duvet is suitable for people with dust allergies and all its components are made without harmful substances , in full compliance with international OEKO-TEX standards.

Fixed square quilting: uniform heat across the entire surface

The quilting with fixed squares maintains the even distribution of the down, avoiding cold spots. The tailored finishes ensure durability and stability over time.

Room Temperature: How to Choose the Ideal Duvet

• 15–18°C: ideal for the D400 Cold Winter
• Below 15°C: perfect for those who want maximum warmth

Personal sensitivity to heat

If you're sensitive to the cold , the D400 Cold Winter is the perfect choice. If you're a warm person , you might prefer a mid-season version. Its high hygroscopicity keeps the microclimate dry even with the window ajar.

Maintenance and durability

• Washing: up to 40°C
• Dryer: recommended to maintain volume
• Full wash: every 3 years
• Daily use: airing the duvet

Why choose the D400 Cold Winter Double Bed

The 250x200 cm size guarantees ample coverage and perfect warmth for the coldest rooms. Refined, natural, and handcrafted in Italy: the D400 Cold Winter is one of the best DaunenStep duvets for those seeking quality, ethics, and thermal comfort during the winter.