---
product_id: 689952462
title: "Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch"
brand: "cosybay"
price: "7019498₫"
currency: VND
in_stock: true
reviews_count: 10
category: "Cosybay"
url: https://www.desertcart.vn/products/689952462-cosybay-queen-size-feather-down-fiber-comforter-ultra-fluffy-duvet
store_origin: VN
region: Vietnam
---

# 90x90 inch ultra fluffy queen size Lightweight & breathable cotton shell All-season cozy warmth with baffle box design Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch

**Brand:** cosybay
**Price:** 7019498₫
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your sleep game with cloud-level comfort and timeless luxury!

## Quick Answers

- **What is this?** Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch by cosybay
- **How much does it cost?** 7019498₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/689952462-cosybay-queen-size-feather-down-fiber-comforter-ultra-fluffy-duvet)

## Best For

- cosybay enthusiasts

## Why This Product

- Trusted cosybay brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable double-needle hemming and corner tabs keep your duvet insert perfectly in place for years.
- • **Year-Round Luxury:** Designed for all seasons, balancing warmth and breathability to keep you cozy without overheating.
- • **Cloud-Like Comfort:** Luxurious blend of duck down & feathers for ultra softness and lightweight warmth.
- • **Stay Perfectly Plumped:** Premium baffle box construction prevents feather shifting and leakage for consistent loft.
- • **Breathe Easy, Sleep Better:** 100% cotton cover ensures breathability and skin-friendly comfort all night long.

## Overview

The Cosybay Queen Size Feather Down Fiber Comforter is a 90x90 inch ultra-fluffy duvet insert filled with a premium blend of duck down and feathers, encased in a breathable 100% cotton shell. Certified OEKO-TEX STANDARD 102 for safety, it features a durable baffle box design and corner tabs to maintain loft and prevent shifting. Lightweight yet warm, this all-season comforter offers breathable, skin-friendly luxury ideal for year-round use in bedrooms, guest rooms, or hotels.

## Description

Buy Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch: Duvets & Down Comforters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent - I really wanted a down comforter. I wanted something fluffy and soft and luxurious feeling and looking. Down comforters are usually super expensive but I was on a budget and I didn't mind looking through multiple websites for the perfect item. desertcart was the only place that I could find that had something like this, both high quality and affordable. This down comforter has a 100% cotton shell as well as having down feathers inside. Even the more expensive products don't offer both. This is super comfortable, cute, and has good quality material. I highly recommend this down comforter.
Review: 5 star awesome. Don’t skip this one. - So soft, with a simple design that can go in a cover or as I am using as a simple white comforter. This comforter is totally breathable so I am cozy but not hot and sweaty. It has a great weight without being overwhelming. I am in love ♥️♥️♥️ and the price cannot be beat. Don’t skip this one.

## Features

- 【Fluffy & Lightweight】Filled with a luxurious blend of duck feather fibers, duck feathers, and duck down fibers, Cosybay white duvet is ultra soft, lightweight, and breathable, providing a cloud-like sleeping experience. Sized at 90 X 90 inches, this lightweight QUEEN duvet insert offers cozy warmth for a restful night's sleep. Ideal for bedroom, guest room, or hotel accommodations, this home collection offers luxurious bedding options.
- 【Premium Materials Certified for Safety】Cosybay bedding duvets & down fibers comforters has passed STANDARD 102 by OEKO-TEX Certified. The cover/shell of comforter is cotton, which makes the comforter extra fluffy, breathable. Premium material guarantees high cleanness, odorless, low noice and skin-friendly feather comforter.
- 【Durable & Exquisite Details】Premium baffle box design construction keeps down fibers and feathers evenly in place and resists from any leaking to ensure a stable and comfortable sleep. The four durable corner tabs prevent quilt from shifting inside duvet cover. Excellent double needle hemming design to ensure its longevity for years.
- 【All Season Duvet Insert】Cosybay's classic all-season duvet, with the perfect weight and thickness, is designed for year-round use, ensuring comfort in both hot and cool weather.
- 【Usage Care & Quality Assurance】It comes with vacuum packaging. Please gently tap and allow the comforter to sit for several hours to restore its original shape. Spot clean or dry clean if necessary. Your satisfaction is our top priority. Please feel free to contact us with any concerns, and we will spare no effort to solve the problems.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CFT3RTXX |
| Age Range (Description) | Adult |
| Best Sellers Rank | #47,511 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #66 in Bedding Duvets & Down Comforters |
| Blanket Form | Duvet |
| Brand | Cosybay |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (777) |
| Date First Available | October 10, 2023 |
| Fabric Type | Shell: Cotton |
| Fabric Warmth Description | Lightweight |
| Fill Material | Down Fiber, Feather |
| Item Weight | 7.48 pounds |
| Item model number | DFC W |
| Manufacturer | Cosybay |
| Material | Cotton |
| Model Name | DFC W-Q |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Product Dimensions | 90"L x 90"W |
| Recommended Uses For Product | Napping |
| Seasons | All, Fall, Spring, Summer, Winter |
| Size | Queen |
| Special Feature | Breathable, Durable, Lightweight, Skin Friendly, Ultra Soft |
| Style | Modern |
| Theme | Plain |
| Unit Count | 1.0 Count |
| Weave Type | Plain |

## Product Details

- **Brand:** Cosybay
- **Color:** White
- **Material:** Cotton
- **Special Feature:** Breathable, Durable, Lightweight, Skin Friendly, Ultra Soft
- **Style:** Modern

## Images

![Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch - Image 1](https://m.media-amazon.com/images/I/412OVkShOPL.jpg)
![Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch - Image 2](https://m.media-amazon.com/images/I/415+B+1tauL.jpg)
![Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch - Image 3](https://m.media-amazon.com/images/I/417mtRf7tHL.jpg)
![Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch - Image 4](https://m.media-amazon.com/images/I/418mzUsYmAL.jpg)
![Cosybay Queen Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season White Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, 90x90 Inch - Image 5](https://m.media-amazon.com/images/I/41VAMWsZP0L.jpg)

## Questions & Answers

**Q: IS IT BREATHABLE?**
A: The Cover/Shell of Comforter is Cotton, Which Makes the Comforter Extra Breathable.

**Q: WHAT SEASON CAN I USE IT IN?**
A: Cosybay's Classic All-Season Duvet is Designed for Year-Round Comfort, Providing Warmth in Both Hot and Cool Weather.

**Q: MEASUREMENTS & DIMENSIONS?**
A: Twin 68"x90" ,Full 82"x86" ,Queen 90"x90" ,CAL King 104"X96" , King 106"X90" , Oversized Queen 98"X98",Oversized King 116"X98".

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent
*by B***H on September 2, 2025*

I really wanted a down comforter. I wanted something fluffy and soft and luxurious feeling and looking. Down comforters are usually super expensive but I was on a budget and I didn't mind looking through multiple websites for the perfect item. Amazon was the only place that I could find that had something like this, both high quality and affordable. This down comforter has a 100% cotton shell as well as having down feathers inside. Even the more expensive products don't offer both. This is super comfortable, cute, and has good quality material. I highly recommend this down comforter.

### ⭐⭐⭐⭐⭐ 5 star awesome. Don’t skip this one.
*by J***3 on November 2, 2025*

So soft, with a simple design that can go in a cover or as I am using as a simple white comforter. This comforter is totally breathable so I am cozy but not hot and sweaty. It has a great weight without being overwhelming. I am in love ♥️♥️♥️ and the price cannot be beat. Don’t skip this one.

### ⭐⭐⭐⭐⭐ Very happy with the pink color and quality
*by L***N on December 3, 2025*

I was so happy with this purchase. It was a good price. The product was very good and my granddaughter loves it. It’s very fluffy.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-24*