Sunday Citizen: The World’s Softest Luxury Bedding and Loungewear

Down Duvet Insert

Down Duvet Insert - Main image
$310.5 $550 In stock

Category: Comforters + Duvets

For a long-lasting, premium-quality duvet insert with a luxurious feel, look no further than our Down Duvet Insert. Featuring all-natural, ethically-sourced down, with a fill power of 750 for superior fluff, our baffle box construction maintains an even filling distribution so you never get a cold spot. Double stitching and a down-proof finish on the insert’s outer shell keeps this piece in perfect shape, ensuring its fluffy filling stays securely inside. A bonus? This duvet insert is also noiseless! Sleep soundly with a rustle-free experience (for the undisturbed rest you deserve).

  • TENCEL™ mix shell
  • Filling: 90% all-natural, ethically-sourced down
  • Fill power of 750; superior fluff
  • Premium 300 thread count
  • Mid-weight for year-round comfort
  • Corner loops for easy attachment to your duvet cover
  • OEKO-TEX® certified
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 15 reviews)

Olivia U. ★★★★★

The 750 fill power is the real deal—this duvet is airy and warm without that heavy, suffocating feeling my old one had. I’ve slept under it for a week and haven’t woken up sweaty once. Knowing the down is ethically sourced makes the higher price feel justified.

Aurora T. ★★★★★

I was skeptical about spending this much, but the ethically-sourced down feels genuinely different—it's like being wrapped in a cloud, and the baffles keep everything evenly distributed all night. I've had it for three weeks now and it still fluffs right back up every morning.

Andrew ★★★★★

The 750 fill power really shows—it’s puffy but not heavy, and I’ve stopped waking up tangled in a lumpy mess. My partner’s a furnace, yet this keeps both of us comfortable without overheating.