---
product_id: 638545498
title: "Cosybay King Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, Blue 106x90 Inch"
brand: "cosybay"
price: "฿8941"
currency: THB
in_stock: true
reviews_count: 10
category: "Cosybay"
url: https://www.desertcart.co.th/products/638545498-cosybay-king-size-feather-down-fiber-comforter-ultra-fluffy-duvet
store_origin: TH
region: Thailand
---

# Duck feather & down fiber blend Lightweight & breathable cotton shell 106x90 inch King size Cosybay King Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, Blue 106x90 Inch

**Brand:** cosybay
**Price:** ฿8941
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your sleep game with the duvet that’s fluffier than your weekend plans!

## Quick Answers

- **What is this?** Cosybay King Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, Blue 106x90 Inch by cosybay
- **How much does it cost?** ฿8941 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/638545498-cosybay-king-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

- • **Stay-Put Design:** Baffle box construction with corner tabs prevents shifting and feather leakage for uninterrupted comfort.
- • **Cloud-Like Comfort:** Ultra fluffy duck feather & down blend for a sleep experience that feels like resting on air.
- • **Luxury Hotel Quality:** OEKO-TEX certified cotton cover ensures skin-friendly softness and premium durability.
- • **All-Season Versatility:** Perfectly balanced warmth and breathability to keep you cozy year-round without overheating.
- • **Effortless Care & Longevity:** Machine washable gentle cycle and double-stitched hemming guarantee lasting luxury and easy maintenance.

## Overview

The Cosybay King Size Feather Down Fiber Comforter is a premium, ultra-soft duvet insert measuring 106x90 inches, filled with a luxurious blend of duck feathers and down fibers. Featuring a breathable 100% cotton shell certified by OEKO-TEX for safety and skin-friendliness, it offers lightweight warmth suitable for all seasons. Designed with durable baffle box stitching and corner tabs to prevent shifting and feather leakage, this comforter combines hotel-quality luxury with easy care and long-lasting performance.

## Description

Buy Cosybay King Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, Blue 106x90 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 blue duvet is ultra soft, lightweight, and breathable, providing a cloud-like sleeping experience. Sized at 106 X 90 inches, this lightweight KING 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 113 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 | B0D1YD4T1G |
| Age Range (Description) | All |
| Best Sellers Rank | #30,771 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #44 in Bedding Duvets & Down Comforters |
| Blanket Form | Duvet |
| Brand | Cosybay |
| Color | Blue |
| Customer Reviews | 4.4 4.4 out of 5 stars (776) |
| Date First Available | April 17, 2024 |
| Fabric Type | Shell: Cotton |
| Fabric Warmth Description | Lightweight |
| Fill Material | Feather and downfiber |
| Item Weight | 8.34 pounds |
| Item model number | DFC B |
| Manufacturer | Cosybay |
| Material | Shell: Cotton |
| Model Name | DFC B-K |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine washable in the gentle cycle with cold water, sun-dry or tumble dry on low. Do Not Dry Clean, Do Not Bleach, Do Not Iron. |
| Product Dimensions | 106"L x 90"W |
| Recommended Uses For Product | Napping |
| Seasons | All, Fall, Spring, Summer, Winter |
| Size | King |
| Special Feature | Breathable, Durable, Lightweight, Skin Friendly, Ultra Soft |
| Style | Modern |
| Theme | Plain |
| Unit Count | 1.0 Count |

## Product Details

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

## Images

![Cosybay King Size Feather Down Fiber Comforter Ultra Fluffy Duvet Insert, All Season Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs, Blue 106x90 Inch - Image 1](https://m.media-amazon.com/images/I/714j5lvVJCL.jpg)

## 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.

## Frequently Bought Together

- Cosybay Feather and Downfiber Comforter King Size, Fluffy Duvet Insert King, All Season Cotton Cover Luxury Hotel Bed Comforter with Corner Tabs (Blue,106"x90")
- Cal King Size 4 Piece Sheet Set - Comfy Breathable & Cooling Bed Sheets Set - Hotel Luxury Bedding for Women, Men, Kids & Teens - Deep Pockets, Easy-Fit, Super Soft & Wrinkle Free - Oeko-Tex - White
- Bedsure Grey Duvet Cover Queen Size - 3 Pieces Prewashed Extra Soft Bedding Set, Includes 1 Duvet Cover 90x90 Inches with Zipper Closure & 2 Pillow Shams, Comforter Not Included

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-23*