Cosybay Reversible Down Alternative Comforter Full
- Full size, 82 x 86 inches
- Polyester shell and fill, box stitch
- Reversible, blue and grey
- Lightweight, all season
- Machine wash, not water resistant
Last refreshed Sep 9, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A lightweight reversible Full comforter that doubles as a duvet insert and washes in the machine. Warmth is only called lightweight.
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ASIN: B07XXTGKPJCategory: Duvets & Down Comforters
Colors Available
Sizes Available
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Overview
Layering this box stitched down alternative comforter over a Full bed gives a blue side or a grey side. It can also sit inside a duvet cover as an insert.
Box stitching holds the polyester fill in place, and the all season listing covers winter and summer. Warmth is only lightweight, so cold sleepers may want more. Corner loops are not mentioned.
Who it's for
Anyone with a Full bed who wants easy machine care and a neutral two-tone look. Queen bed owners should buy a larger size.
Pros and cons
- Box stitch fill control
- All season listing
- Warmth rating is lightweight
- Loops not listed
- Not water resistant
- Fill weight not listed
Performance notes
Box stitching splits the fill into squares so it does not migrate. Lightweight polyester fill traps less heat than a heavy duvet. Washing and drying in a machine restores loft.
Specifications
| Brand | Cosybay |
|---|---|
| Dimensions & fit | |
| Size | Full |
| Item Dimensions L x W | 86"L x 82"W |
| Construction & materials | |
| Fabric Warmth Description | Lightweight |
| Fill Material | Polyester |
| Material Type | Polyester |
| Fabric Type | Soft Polyester Fabric |
| Color | Blue/Grey |
| Included components | |
| Included Components | duvet insert |
| Other details | |
| Seasons | All, Fall, Spring, Summer, Winter |
| Pattern | Box Stitch |
| Product Care Instructions | Machine Wash |
| Water Resistance Level | Not Water Resistant |
Frequently asked questions
Is the Cosybay comforter reversible?
Yes. It is blue on one side and grey on the other.
How do I wash the Cosybay comforter?
The care line says machine wash.