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Cocoon by Sealy mattresses are good for:

  • people who like memory foam
  • hot sleepers on a limited budget
  • people who like firmer beds


  • free shipping and returns
  • 100-night trial period
  • 10-year warranty
  • made in United States

The bed-in-a-box industry has really taken off in the past few years, partly due to the great value proposition direct-to-consumer (DTC) mattress companies offer. Cocoon by Sealy and Casper are no exception.

Both companies offer free shipping, a 100-night risk-free trial, and free returns.

Yes, that means the mattress will arrive at your doorstep in a somewhat small box within a matter of days. No more shopping around multiple brick-and-mortar retail stores and loading mattresses yourself.

Then you get 100 nights to try out the mattress. If you don’t like it after the second night or the 98th night, give Sealy or Casper a call and they’ll refund your money and come pick up the mattress free of charge.

Plus, on top of that, both companies also back their mattresses with a 10-year warranty. Needless to say, Sealy and Casper are trying to make it as easy as possible for consumers to try out their mattresses, because they’re that confident you’ll love their product.

And it’s hard to argue. Both mattresses are pretty awesome, but they do differ somewhat. Let’s get to these bed-in-a-box mattress reviews.

Cocoon by Sealy mattress overview

Sealy isn’t new to the mattress game. It’s one of the most established and well-known brands in the industry.

However, Sealy is new to the DTC, bed-in-a-box industry. Sealy launched its first bed in a box, Cocoon, in 2016, and it quickly took off.

The Cocoon line includes two different mattresses. You’ve got the Cocoon Classic, which is the baseline mattress, and the Cocoon Chill, which is designed to dissipate heat better.

Sealy also gives you the option to somewhat customize each mattress. You can choose between a soft or firm feel. For the purposes of this review, though, we’ll refer to the Cocoon Chill medium-soft model, so keep that in mind.

Cocoon mattress construction

The Cocoon mattress is made up of three layers of foam. You’ve got the bottom layer, which is super resilient and gives the mattress its support. Next you have what Sealy calls its “Comfort Layer.”

Basically, if you choose the soft version, it will have more of an “in the bed” feel versus an “on the bed” feel if you go with the firm model.

Then on top of that is a layer of high-quality memory foam that adapts to your body’s size and shape. The end result is a super comfortable memory foam feel.

But if you have slept on a traditional memory foam mattress before, there’s a decent chance you’ve probably noticed that you can get quite hot during the middle of the night due to the physical properties of some memory foam materials.

Well, that’s where the “chill” in Cocoon Chill comes into the play. The Cocoon Chill mattress has a stretch-knit cover that it says is infused with propriety phase-change material.

That’s a lot of fancy words to say the cover is able to absorb and dissipate heat. And it definitely works pretty well.

The Cocoon Chill was one of the coolest, if not the coolest, sleeping mattress we tested. We actually thought something might have been wrong because the cover was almost wet to the touch when we first unboxed the mattress — pretty crazy.

This is a department where Cocoon definitely has a leg up on Casper. Not that Casper is bad by any means. We just think the Cocoon Chill mattress does a slightly better job at regulating heat.

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Cocoon Chill does a great job of regulating heat.

Cocoon mattress firmness, motion transfer, and overall feel

We give the Cocoon Chill Soft a 5.5 out of 10 on our firmness scale: 1 being like lying on a 12-year-old pillow and 10 being rock hard.

So, with a score like that, we obviously think it strikes a pretty nice balance between being soft while also providing quite a bit of support.

It’s slightly firmer than Casper, but not by much. Now we did test out the soft model, so our best guess would be that the firm model would land somewhere between 6 and 6.5 on our scale — which would be closer to the likes of Bear Mattress.

We felt that Cocoon would be perfect for combo sleepers — basically anyone who rotates between sleeping on their back, side, and stomach at night. It’s soft enough for side sleepers but firm enough for back and stomach sleepers.

If, however, you exclusively sleep on your side, you may considering Casper over Cocoon on account of Casper being a little bit softer.

In terms of motion transfer, the Sealy Cocoon mattress performs quite well. In fact, it was one of the best mattresses we’ve tested.

We put a beer can at the end of the bed and started jumping on the other end like our favorite football team just won the Super Bowl. The can wasn’t fazed at all.

So, if your partner happens to toss and turn quite a bit during the middle of the night, you won’t have to worry about waking up.

Cocoon by Sealy price

Cocoon mattresses are priced pretty moderately compared to the rest of the industry.

The Cocoon Classic is the cheapest between the three different mattresses. Prices for the classic model range from $399 for a Twin to $999 for a King. The Cocoon Chill is slightly more expensive, with prices ranging from:

SizePrice (MSRP)
Twin XL$650
Cal King$1,150

The good news is that Sealy is one of the mattress companies that fairly often has discounts and coupon codes. In fact, right now you can get $100 off any mattress with code RIZKNOWS.

If pressed to choose, we’d have to go with the Chill model over the Classic model just because we like its cooling capabilities so much. Either way, though, it’s hard to be critical of either Cocoon mattress.

They provide a great balance between comfort and stability. They’re moderately priced, and the Chill model is great at regulating heat.

In terms of the Cocoon by Sealy versus Casper decision, it’s a tough call. As you’ll see in a minute, there’s a lot to like about each mattress.

At the end of the day, it just comes down to what characteristics and features you like better, as both mattresses are priced almost exactly the same.

If you like a slightly more supportive feel and keeping cool while sleeping is a chief concern, it’s hard to pass on the Cocoon Chill.

Casper mattresses are good for:

  • people who are looking for a comfortable, affordable mattress
  • anyone who’s interested in a bed-in-a-box mattress


  • free shipping and returns
  • 100-night trial period
  • 10-year warranty
  • made in United States

Casper mattress review overview

If you’re reading this, you probably don’t need an introduction to Casper. Chances are you’ve most likely heard the name before. Casper didn’t invent the bed-in-a-box concept, but it sure helped bring the industry into the spotlight.

It was one of the first DTC mattress companies to really grab national attention, and as a result, they grew to become a $100 million-plus company almost overnight.

Casper mattress construction

Like the Cocoon mattress, the Casper mattress is constructed with various layers of foam. Casper just has one more layer. It starts with a 5-inch bottom layer to provide support for the bed.

Next is a layer of Zoned Support foam followed by a layer of responsive memory foam. And finally on top, you’ve got a layer of open-cell foam.

Supposedly, the top layer uses convection and conduction to flow heat away from your body. Honestly, that’s a little too much science for me. I will say the Casper mattress is pretty good at regulating heat.

SPECIAL PROMOTION: $200 Off Select Casper Mattresses w/Code RIZKNOWS

I never woke up in the middle of the night drenched in sweat or anything, I’d just say the Cocoon Chill has a slight leg up here. Then, to wrap everything up (literally), is a woven cover you can zip off, but Casper recommends you just spot-clean it rather than machine-wash it.

Casper firmness, responsiveness, and motion transfer

As eluded to earlier, the Casper mattress comes in slightly below Cocoon on the firmness scale. We give the mattress a 4.75 to 5.75 out of 10, meaning we think it has a perfect balance between being soft and comfortable while also providing the necessary support needed for your body.

It truly is a nice mix. Casper definitely has this thing figured out. Once you lie down, all you want to do is take a nap or binge-watch some Netflix.

One thing to note: If you do happen to sit or stand in one particular place, the mattress does compress a bit, but once you lie down and spread out your body, it does a good job cradling your heavier body parts and providing the needed support.

Additionally, Casper is pretty much the quintessential mattress for combo sleepers and side sleepers. If you roll around a lot in your sleep, ending up on your back, side, and stomach at some point throughout the night, Casper is a really good mattress for you.

If you sleep mostly on your back and stomach, you may consider a more-firm mattress, but Casper will do fine. If you have a higher body weight, Casper probably isn’t the best option, only because it’s quite soft. In this case, Cocoon might be a better option.

Also, motion transfer is pretty good with Casper. It too passed our beer can test with flying colors, so no need to worry if your partner moves around a lot in their sleep.

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Minimal motion transfer with Casper.

Casper mattress price and coupon code

Casper mattresses are priced a little higher than the Cocoon Chill. Prices range from $595 for a Twin to $1,295 for a King.

Like Sealy, though, you can sometimes find a Casper mattress discount code or Casper mattress coupon code to knock off an additional $50 or so from your purchase. Right now, you can use code RIZKNOWS for $200 Off.

The Casper mattress is a solid choice, no doubt about it. The company wouldn’t be where it is today if the product didn’t live up to expectations. The mattress is ultra-comfortable and does a pretty decent job of keeping you cool.

In regards to Cocoon Chill, I kind of already hinted at why you would pick one over the other above. In Casper’s case, if you like a slightly softer feel, I think Casper is the way to go.

I think you’d really like how the top layer of foam contours to your body and provides a little bounce. Given they’re both about the same price, though, you really can’t go wrong either way. Now go grab some Zzz’s.

The Mattress Finder team is composed of certified professionals who are passionate about helping consumers improve their sleep. We thoroughly test each mattress we review through a series of practical, hands-on inspections and assessments. We write every review expecting that our closest friends and family members rely on us for their mattress and sleep product decisions, so honesty and authenticity are core principles of our inspection process.