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Availability:
In Stock.
Arrives
Thursday, Sep 3
Recently Viewed
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
Recommended User Type: adult
UPC: 860014330490
Manufacturer: Mellow Sleep Technology
Item Type Name: Comforter
Size: King / Cali King
Unit Count: 1 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Sep 3
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: White
Size: King / Cali King
I got the Mellow Comforter in KING /white and I am honestly so impressed with it! I was a little nervous about choosing white because I wanted something that looked nice and fluffy but was practical and comfortable for everyday use. This comforter completely exceeded my expectations. The first thing I noticed was how soft and cozy it is. It has that fluffy, cloud-like feel without being extremely heavy or bulky. It keeps me comfortable throughout the night without making me feel overheated, which is a huge plus for me. I also love how nicely it lays on the bed and gives it that clean, luxurious look. The white color is absolutely beautiful and makes my bedroom look so much brighter and more put together. It has that simple, clean aesthetic I was looking for, and it looks much more expensive than I expected. I also really appreciate that it’s comfortable enough for everyday use while still looking beautiful. After using it, I can definitely see why it’s called the Cloud Comforter. It really does feel like sleeping under a soft little cloud. ☁️🤍 Overall, I am extremely happy with this purchase. The quality, softness, comfort, and appearance are all fantastic. The white was definitely the right choice for me, and this comforter honestly exceeded my expectations. I would absolutely recommend it! ⭐️⭐️⭐️⭐️⭐️
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Reviewed in the United States on August 18, 2026 by Megan Taylor
Color: White
Size: Full / Queen
Not too hot! I live in Hawaii and the comforter isn’t too hot and sweaty, albeit I sleep with the corner rolled up like a big fluffy marshmallow body pillow. It’s airy, fluffy, and really so soft. I absolutely love this duvet insert for the price! Far less than “luxury” brands, but it has an even more plush experience! I love everything about it, even though it goes a little flat after some time. No feathers and no quills poking you, which is a plus! I love the spandex feeling too, even though I have a cover now. The packaging was really premium too adding to the luxury. Only con: If anyone has tips on how to properly fluff it back to original let me know! Every week or so I just pull the material apart to fluff it up and it works decently well to give that airy jiggle I love. I think I might invest in the pillows next!
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Reviewed in the United States on August 26, 2026 by Never Compromises
Color: White
Size: King / Cali King
I’m pretty picky when it comes to bedding because I want that big, fluffy, cozy-bed feeling, but I also don’t like waking up feeling overheated. This comforter has been such a great balance of both. It feels incredibly soft and plush, gives our bed that full “hotel bed” look, and is so comfortable to curl up under at the end of the day. I also really appreciate that the fabric is OEKO-TEX certified. I try to be mindful of the products we bring into our home and what my family is sleeping in every night, so that was an important detail for me. It has stayed fluffy instead of immediately going flat, and I love that it’s machine washable because anything in our house needs to be practical, too! Overall, it feels much more luxurious than I expected and has made our bed feel so much more inviting. Definitely a 5-star purchase for me. The only problem is that now I REALLY don’t want to get out of bed each morning! It literally is a marshmallow!
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Reviewed in the United States on August 18, 2026 by Mallory
Color: White
Size: King / Cali King
I bought the Mellow Marshmellow Comforter for my wife, who has been dealing with the temperature swings and occasional night sweats that come with perimenopause. Finding bedding that is soft and cozy without making her feel trapped under a heavy, hot blanket has been a challenge. This comforter has been a great surprise. It is incredibly fluffy and soft without feeling overly heavy, and it has that "sleeping on a cloud" feel. My wife especially likes that she can get cozy without feeling like she has a huge, heavy comforter pressing down on her. The biggest thing for us is temperature. It doesn't magically prevent every hot flash or night sweat, but compared with some of the heavier comforters we've tried, this one does a much better job of keeping her comfortable when her body temperature changes during the night. She can stay covered and cozy without immediately wanting to throw the entire comforter off the bed. It also looks fantastic on a king-size bed. The extra loft gives the bed that fluffy, luxury-hotel appearance, and the box stitching keeps the filling nicely distributed. It's also machine washable, which is a big plus when you're dealing with bedding that gets used every night. Bottom line: If you're buying this for someone who wants a super-soft, fluffy comforter but struggles with getting too hot at night, I'd definitely give it a try. For my wife, it has made bedtime noticeably more comfortable. 5 stars from us — especially from the person who actually has to sleep under it! 😂
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Reviewed in the United States on August 25, 2026 by Todd
Color: White
Size: Full / Queen
I seldom write reviews but had to write a review for this. I'm not going to say anything that hasn't been said by everyone who purchases this comforter, but it truly the most fluffy, pillow soft comforter I've ever felt. What I love most about this is that is has spring back. Most comforters or down alternative duvet inserts will feel great when you first touch it but bottom out. This wraps around you and you can still feel the cloud underneath. I also appreciate how well it drapes unlike other puffy comforters that are still looking. this thing drapes like a bedspread. Lastly, the cooling side feels fantastic. I can see how this would keep you warm, but not overheated. I love everything about this comforter and can't recommend it enough.
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Reviewed in the United States on August 19, 2026 by Linda D.
Color: Pink
Size: King / Cali King
Super Soft and Cozy! ⭐️⭐️⭐️⭐️⭐️ This comforter is incredibly soft and fluffy—it really does feel like a marshmallow! It’s cozy without feeling too heavy, so I can see myself using it all year round. Warm enough for cooler nights but still comfortable for spring and summer. I love how soft it feels and have been sleeping so comfortably with it!
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Reviewed in the United States on August 22, 2026 by vivi
Color: White
Size: Full / Queen
Gifted to my 15year old son (at his request by the way) and he loves it. He generally runs hot so I was worried but he bundles all up like a burrito and sleeps great with this comforter. He loves the feel and squish, haha. Only reason I didn't go 5 star is because I haven't washed it yet so can't say how it will hold up and I wish it was available in darker colors. I had bought a black duvet cover (not Mellow) for, but it detracted from the softness of the comforter so it was quickly removed.
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Reviewed in the United States on June 25, 2026 by Kindle Customer
Color: Pink
Size: King / Cali King
Absolutely love this comforter! It’s incredibly soft and fluffy without feeling too heavy, and it keeps me comfortable throughout the night. The pink color is beautiful and looks just like the pictures. I also love the box stitching—it helps keep the filling evenly distributed instead of bunching up. It feels high-quality, cozy, and perfect for year-round use. Definitely a great value for the price. I’m very happy with this purchase!
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Reviewed in the United States on August 21, 2026 by Vincent