My Slumber Cloud Stratus Sheets Experience and Review

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My Slumber Cloud Stratus Sheets Experience and

You have many fabric options when it comes to sheet sets. There’s the classic cotton sheet that comes in a percale or sateen weave, bamboo, polyester, microfiber, lyocell, and plenty others. And then there are blends. You also have to consider thread count, long-fiber threads, and whether or not you want sheets that are soft and warm, silky soft and sleek, crisp and cool, or soft and fuzzy. Sometimes all you want is a set of sheets that works in any climate. Sheets that will keep you warm when you’re cold and then keep you cool when the temperature rises.

That’s right about where Slumbercloud Stratus Sheets come in to play. I can tell you from personal experience, these are not your standard cotton sheets, and terms like percale and sateen don’t really apply. However, these might be the best sheets you’ll ever sleep on and under. Keep reading to find out why.

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What I Got When I Ordered These Sheets

Buying sheets online is kind of like shooting a game of craps – sometimes it’s just dumb luck when you get something good. In the case of these Slumbercloud Stratus Sheets, though, I found that there was enough information to make an informed decision when buying these. I expected these sheets to be soft, but it also kept me cool. There were a few aspects to these sheets I didn’t expect, but I was pleasantly surprised by.

First, the packaging was clean and professional, but the company goes one step further than most other linen companies. It included a handwritten note to express gratitude for my purchase, and the sender told me to enjoy the sheets. They even included a Sleepy Time tea bag! That was a nice little surprise.

As I do with all new sheets, I unwrapped these and immediately tossed them into the washing machine. I prefer to play it safe with sheets because I have no idea how well they’ll hold up to multiple rounds of washings and dryings, so I chose to wash them on the delicate cycle. Then I dried them on low. They came out warm and toasty, and they had only a few wrinkles.

Making my bed with these sheets was easy, thanks to the full elastic fitted sheet. You know how so many fitted sheets only have elastic on the corners? Those seem to always pop off in the middle of the night, which is so annoying. The full elastic all the way around the fitted sheet ensures a snug fit on almost any mattress. The pockets are deep, so they should fit even pillowtop mattresses up to 15 inches thick.

The flat sheet spread onto my bed and fit perfectly for me. It may not be big enough for everyone, though. I don’t ever tuck my sheet in at the feet because I almost always stick a foot out – it helps to regulate my body temperature at night. So, hospital corners are probably not possible with this flat sheet. However, I might want to tuck the sheet in now that I’ve slept on these.

My first night on these linens, I wasn’t expecting much. My bed is a 10-inch tall memory foam mattress, so I expect to sleep warm every night. These sheets cooled down quickly after their tumble in the dryer, and they were cool to the touch when I climbed into bed. You know that feeling of those crispy cool sheets and how they feel on your legs when you slip between the sheets? These stayed like that all night. I didn’t even need to stick a foot out to cool down.

To give it a better test, the second night, I turned my air conditioner to a warmer temperature. I still woke up with no sweat, and the sheets stayed put. I was a little warmer than the night before, but it was nothing like when I slept on microfiber sheets.

I read up a bit on the Outlast technology, which is what Slumbercloud uses in these sheets and some other products, and I wanted to test the theory that these sheets keep you cool when you’re hot, and warm when you’re cold. So, I turned my thermostat super low. I crawled into bed, cold as could be, and the sheets were ice cold. Not quite what I was hoping for. But I gave it a few minutes, and it started to warm up a little. Here’s where it started working the opposite direction. The sheets seemed to absorb my body heat and then projected it back to me. I don’t know what sort of magic they’re using in that Outlast technology, but it seems to work better than any other set of sheets I’ve used. I can definitely see me using these year-round.

I’ve been sleeping on these sheets for the past few weeks, and they’ve had quite a few runs in the washer and dryer. I was surprised to see how well they’re holding up to repeated use and washes. There are no runs or snags in the fabric, and they seem to be super durable. They’re also thicker than I expected for cooling sheets. I noticed no pilling, which makes sense for a set of sheets that is crisp and cool. They did seem to shrink a bit in the wash, but it made no difference to me or the fit on my mattress. In fact, I preferred that the fitted sheet shrunk a little.

The set that I received is white, so they’re a little different than the dyed options. You have six color choices, and the white ones are a lower thread count and have less of the cooling technology applied to the fabric. I also can’t tell you how the dye holds up to washing and drying on the blue, sandy, green, mauve, or dove colors.

The only thing I didn’t like about these sheets was the cost. Yes, I know that I’m going to have to pay more for high-quality products, but the price on these sheets seemed steep. Given that I love them, it’s probably worth it to pay more. I’m just hoping that they’ll last for years, making it a good value.

Features & Benefits

These are not the run-of-the-mill everyday sheets that you can buy at a big box store. These sheets have technology and features that offer you a number of benefits. So, let’s go over what those are and how these sheets by Slumbercloud differ from the others.

Outlast Viscose

The big selling point of these sheets is the blend of cotton and viscose. Cotton is known for its durability and breathability, but cotton alone isn’t enough to combat the heat at night sometimes. Slumbercloud combined cotton with Outlast viscose. Outlast is a patented technology that was designed for NASA. It works by absorbing and releasing heat. So, when you’re asleep in bed in between these sheets, your body releases heat, and the sheets absorb it. If you’re warm and producing tons of heat, the heat is stored until you’re cool again, and then it releases it back to your body.

The white sheets are made of 60 percent cotton and 40 percent Outlast viscose, while the other colors are a 50/50 blend.

Thread Count

Thread count doesn’t always matter, but in this case, you’re looking for sheets that are a bit soft but not too satiny or heavy. The thread count of these sheets is 300 for the white set and 350 for the other colors. For cool crisp sheets, you should always seek a set that’s less than 600 thread count, otherwise, they could be too warm. Less than 300, and you’re risking slipping under a sheet that’s scratchy and thin.

Sheet Fit

Slumbercloud understands sheet frustrations, which is likely why the company included elastic all the way around the fitted sheet. Plus, the fitted sheet has deep pockets, which should fit a mattress up to 15 inches thick. That’s good news for those who have a pillow top mattress or those who like to add a mattress topper to their bed.


There are six colors from which you can choose. White is obvious and needs no description. Sandy is what it sounds like: a light tan color, like sand. Dove is blue with a bit of gray. Green shows up online as a light mint green color. The mauve is more of a dusty rose color, so it’s a bit like a mature pink. Blue is a light pastel shade of blue.

Return Policy

If there’s anything you don’t like about your Slumbercloud Stratus sheet set, you can return it for a full refund. You have 30 days to do so, which is standard in the industry.

Manufacturer Warranty

The manufacturer offers a short warranty of 90 days. So, if there’s anything wrong with your sheets that could be a defect in quality or workmanship, you can return the set to Slumbercloud for a repair, replacement, or refund.

How Others Felt About Slumber Cloud Sheets

You could take my review of these sheets and call it a day, but it helps to know what other customers also felt about these sheets. Here’s a summary of the most important points of these sheets.

Most of the people who bought these sheets did so because they were hot sleepers. And overall, the buyers who posted reviews were not disappointed. A handful of reviewers did say that the sheets started out cool, but the heat increased as the night went on.

The feel of this sheet set is surprisingly soft, say most users, but more people describe them as crisp-feeling and cool to the touch. The sheets are also thicker than most people expected.

For the most part, the fit of the sheets is excellent. A few people didn’t like the size of the flat sheet because it didn’t allow for tucking, while others felt the fitted sheet was too big and shifted a bit at night.

Many people noted that these are expensive sheets, but the majority of those who purchased these sheets say it was worth it. In fact, most buyers are also looking into other products by the same company.

Reviews mention that these sheets are durable and long-lasting, and they appear to hold up well to washing, drying, and use night after night. However, they do shrink a bit after drying, which was an issue for some reviewers who had taller mattresses.

Most people didn’t mention the look of the sheets, but those who did were mostly not pleased. The green color was less of a mint and more of a lime, said one reviewer. Others expressed the want for more variety of colors. And some said these sheets came out of the dryer a bit wrinkly.

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You may want to read: Best Cooling Sheets


Finding the right set of sheets for year-round use is kind of like winning a lottery. You might feel lucky for having found the Slumbercloud Stratus Sheets because you can use them during spring, summer, fall, and winter, and you know that you’ll be kept cool when it’s hot out and feel warm and cozy when the temperature outside drops.

These sheets are easy to care for – just drop them in the washing machine and dryer like any other set of sheets. Yes, they’ll wrinkle a bit. And yes, they may shrink in the wash. But they should work well for you night after night.

They’re surprisingly soft for a set of cooling sheets, and they’re thicker than you may expect for a 300- to 350-thread count set of sheets. You may find yourself sleeping under your sheets with this set rather than tossing them off you in a fit of heated, sweaty rage. If this personal review helped you decide on these sheets, or if you had any questions, feel free to comment and share below!

Frequently Asked Questions

How do you wash them?

Wash on delicate cycle. Dry on low heat.

Do they include organic materials?


What sizes are available?

Available in Twin, Twin XL, Full, Queen, King and California King.

What's included?

Fitted sheet, flat sheet, and two pillow cases.