When my colleagues' friends started asking about the MarshMellow Comforter, we knew it was getting attention. Not only was this comforter featured in Instagram videos with millions of views, but it was popping up all over social media feeds with claims of being “the coziest comforter.” Even Lexie Sachs, the Good Housekeeping Institute’s executive director, got a text from a friend asking about it: “Do you know anything about this ‘Mellow’ comforter? I keep getting targeted ads, and I can’t tell if it would be awful or amazing.” I had to find out for myself: What does this viral comforter actually feel like in real life, and is it really as cozy as it looks on social media?
As someone who tests products for a living at the Good Housekeeping Institute and is admittedly obsessed with bedding, I've slept under more comforters and duvets than I can count. Over the past several years, I've tried everything from cooling comforters to luxury down duvets that will set you back several hundred dollars. So how does the buzzy MarshMellow Comforter compare? I swapped out my beloved duvet for the MarshMellow Comforter for a few weeks to find out. Here’s what surprised me, and whether I think it lives up to the social media hype.
Pros
- Soft, silky feel
- Plush fill
- Often discounted around 50% off
- Can be used without a duvet cover
- Machine washable and dryer-friendly
- Offered in 10 shades
Cons
- Not as airy or lofty as real down
- Brand makes certain claims that GH fiber scientists couldn't validate
- Only sold in one thickness
| Fill material | Microfiber blend |
| Cover material | Microfiber |
| Sizes | Twin/Twin XL, Full/Queen, and King/Cali King |
| Colors | 10 options |
It offers cloud-like softness for a good price.
The second I took the MarshMellow Comforter out of its packaging, I understood how it got its name. The fabric is incredibly soft and silky smooth, so much so that you want to curl up underneath it (I most certainly did). Its outer shell is made of OEKO-TEK Class I microfiber, and it’s also stuffed with down alternative microfiber. It has a squishy, marshmallow-like loft that makes it feel plusher or at least comparable to more expensive comforters I've tested, like the Pottery Barn Sleepsmart Temperature Regulating Duvet Insert, one of our experts’ top-tested cooling comforters.
According to Mellow, the MarshMellow is “2X fuller than any other comforter.” Though our GH Institute Textiles Lab experts weren’t able to verify this claim, I did find it fuller than similarly priced and even pricier down-alternative comforters, and there were no obvious thin spots.
You can skip the duvet cover.
MarshMellow is designed to be used without a cover, which is a huge win if you’re hoping to make bedding turnover days easier. Trust me, changing the duvet cover is probably one of my least favorite chores (especially for a King-sized bed). That said, the comforter does feature corner loops in case you do want to use a duvet cover with it and refresh your space with a cute pattern or print.
It’s washer- and dryer-friendly.
I also love that it’s machine washable, should you encounter any spills or stains. You can dry it too, though tumble dry low is recommended. This can help keep costs down compared to down comforters, which are typically dry clean only.
The value is excellent.
At under $100 for a Twin and just over $100 for a King when on sale, it’s difficult to find a comforter this soft at such an affordable price. For comparison, the Buffy Cloud Comforter, which is similar to the MarshMellow in its fluffiness and cloud-like feel, starts at $149 for a Twin and $249 for a King.
A few drawbacks
It doesn’t replace a down duvet.
While the MarshMellow has a lot going for it, it’s still not going to replace my favorite down duvet from Boll & Branch. It’s undeniably soft, but it doesn’t have quite the same airy, premium feel that I love.
It’s only available in one thickness.
The MarshMellow Comforter is made for year-round use and comes in only one thickness. Unlike other comforters, it’s not offered in lightweight, midweight, and heavyweight options. In comparison, Buffy has two weights (all-season and winter weight) available.
Some of Mellow’s claims gave me pause.
Mellow makes several claims that deserve a closer look. The brand describes the comforter as “baby-safe,” citing its OEKO-TEX certification. GH fiber scientists confirmed with OEKO-TEX that this certification only means it was tested against strict limits for harmful substances, and it does not certify overall infant safety. In fact, the comforter isn’t designed for babies or infants.
Mellow also calls the comforter “antibacterial” and “heat-adaptive,” claims we’d like the brand to substantiate. Our experts still recommend washing your bedding regularly to ensure it’s clean and fresh. And while Mellow promises “no overheating,” no comforter can fully stop night sweats. I’m a hot sleeper and will always overheat during the night no matter what bedding I’m using, and Mellow is no exception.
My final take
If you're looking for the fluffiest, most luxurious bedding money can buy, I'd still point you toward a high-quality down duvet. But if you prioritize convenience, comfort, and price, I think the Mellow MarshMellow Comforter is worth it. It offers a very similar cloud-like feel to Buffy’s Cloud Comforter for less, making it a great choice for anyone who loves that fluffy, super soft feel (I mean, who doesn’t?). That being said, I wouldn’t recommend buying it based on claims of being “baby-safe” or “antibacterial.”
