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Mellow

Mellow Marshmellow Comforter King/Cal King - Extra Fluffy Double-Stuffed Down Alternative Duvet Insert, All-Season Temperature-Balancing, Oeko-TEX Class I Fabric, Box-Stitch, Machine Washable

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Jun 7
Order within 5 hours and 41 minutes
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Color: White


Size: King / Cali King


Features

  • Puffy "Marshmallow" Loft (2X Fill) - Double-stuffed for a visibly fluffy, cloud-like comforter. Great as a duvet insert or standalone comforter for everyday hotel-style bedding.
  • All-Season Comfort, Less Overheating - Temperature-balancing, heat-adaptive fibers help you stay warm yet breathable - ideal for hot sleepers, cold bedrooms, and year-round use.
  • Gentle on Skin (OEKO-TEX Class I) - Baby-grade certified fabric shell feels ultra-soft and smooth, a smart pick for sensitive skin and family bedding.
  • Box-Stitch = No Shifting / No Clumps - Even distribution keeps the fill in place to reduce bunching and flat spots, so the comforter stays consistently cozy across the whole bed.
  • Easy Care Vegan Down Alternative - Cruelty-free down-alternative fill; machine washable for simple care. Works with most duvet covers and is ideal for guest rooms, dorms, and pet homes.

Material: Polyester


Color: White


Brand: Mellow


Special Feature: Box-Stitch Construction, Fluffy, Machine Washable, OEKO-TEX, Temperature Balancing


Style: MarshMellow


Color: White


Style Name: MarshMellow


Blanket Form: Comforter


Theme: MarshMellow


Pattern: Solid


Material Type: Polyester


Fill Material: Polyester


Product Care Instructions: Machine Wash


Fabric Type: Microfiber


Additional Features: Box-Stitch Construction, Fluffy, Machine Washable, OEKO-TEX, Temperature Balancing


Recommended Uses For Product: Napping, Reading, Travel, Working


Seasons: All


Fabric Warmth Description: Medium


Brand Name: Mellow


Age Range Description: Adult


Number of Items: 1


Included Components: Comforter


UPC: 860014330490


Manufacturer: Mellow Sleep Technology


Item Type Name: Comforter


Size: King / Cali King


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Soft and very good comforter Soft and very good comforter
Color: White Size: Full / Queen
Review Image by Tk
Review Image by Tk
Review Image by Tk
This thing is really comfortable. It fits in queen size cover just right with a loop at edges to tie it up. It has perfect amount of padding inside and does not feel heavy at all, how it comes rolled up tells how fluffy it is. It didn’t come with any instructions, I can see how some people were confused after running in their washer. I’d say it should be washed in front loader and not top loader in blanket mode to be safe. For this softness and size it is worth the price. ... show more
Reviewed in the United States on April 30, 2026 Reviewed in the United States on April 30, 2026 by Tk
    • Definitely worth it!
Color: White Size: King / Cali King
I was nervous to pay 150$ for a comforter and hate it but I am in love with this comforter it’s so soft and lightweight but yet fluffy and heavy at the same time. I’ve always had goose down comforters and it’s light and airy compared to that. Not as cooling as a goose down but still great! Only downside is it’s white and I don’t want to put a cover on it because it’ll take away the softness. ... show more
Reviewed in the United States on May 22, 2026 by Amazon Customer
    • Warm, Soft, & Beautiful! Warm, Soft, & Beautiful!
Color: White Size: Full / Queen
Review Image by Jasmine C.
Review Image by Jasmine C.
Best Comforter ever! I was skeptical of whether this product is as soft and comfortable as people have said, but it is amazing! Keeps in the warmth, which is good because I am constantly too cold at night. Appearance is beautiful , looks so welcoming, and soft to the touch, definitely worth its value! ... show more
Reviewed in the United States on May 11, 2026 Reviewed in the United States on May 11, 2026 by Jasmine C.
    • Fantastic product!
Color: White Size: King / Cali King
This comforter is like sleeping on a cloud! I used to have to double stuff a duvet cover to get this kind of thickness and comfort & I’m so glad I don’t have to do that anymore. It’s soft, thick, and so sleek looking on my bed. 10/10 would recommend!
Reviewed in the United States on May 12, 2026 by Daria
    • The filling clumps up. Poor quality The filling clumps up. Poor quality
Color: White Size: King / Cali King
Review Image by Stephanie
The commercials and even the pictures make this look so much more quality and poofy. It is none of those things. I received my box today. Pulled it out with such excitement and it is trash. Do not waste your time or money. It is overpriced and low quality. It is not super poofy. This is a $20 blanket all day long. I really hate being scammed. Do yourself a favor find something else because this is not as pictured or as advertised. ... show more
Reviewed in the United States on April 16, 2026 Reviewed in the United States on April 16, 2026 by Stephanie
    • Awesome Mellow
Color: White Size: Full / Queen
Oh my golly!! I can't believe this awesome fluffy comforter is only $100. It's easily comparable in quality and material for a $500 comforter.
Reviewed in the United States on May 22, 2026 by Harley1963
    • Wow!
Color: White Size: King / Cali King
Wow!! All I can say is wow!! So comfy and soft. I’m a snob when it comes to my blankets. I’m very particular and this blanket is amazing!
Reviewed in the United States on May 15, 2026 by Jackie Jo
    • Most fluffiest comforter I've ever purchased
Color: White Size: Full / Queen
This is one of the softest and fluffiest comforters I have ever seen. If you run hot, this will make you hotter. It will not cool you down. I sleep with a fan on so it's perfect for me because I get hot and cold. I have a queen bed and bought the queen size. It does not drop to the sides as shown in the image so if you want that look, I suggest a king size instead. My bed is high so it could also be the reason. If your bed is lower to the floor then the queen size should be fine. ... show more
Reviewed in the United States on April 30, 2026 by Marpessa420

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