Nest Sparrow Signature Hybrid Mattress Review

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Nest Sparrow Signature Hybrid Mattress

I remember shopping for my first memory foam mattress in the early 2000’s. I tried one out in a department store and absolutely fell in love. However, I ended up spending around $3,500 for a king-sized product that’s no better in terms of quality than the queen mattress I have to present to you today.

Memory foam hooked me because of its amazing contour and ability to mold to fit your body, and today they’re easier and cheaper to get into your home than ever before. With the click of a mouse, you can browse dozens of quality options without ever leaving the house. I generally have positive experiences with the products I’m provided, but this one really hit it out of the park for me, so let’s get into the nitty-gritty.

Video Review

Don’t want to read the full review? Watch our video review instead.Nest Alexander Signature Hybrid Video Review

Nest Sparrow Hybrid Mattress Specs

 Offgassing – Some off-gassing- cleared within a day

 Trial Period – 100 nights

 Warranty – Lifetime Comfort Guarantee

 Firmness Level (Scale of 1-10) – Depends on the firmness
option selected, Medium option- 6

Mattress Layer Construction

The Cover

Before we get into any kind of testing, let’s first build a foundation for your understanding by looking inside this product so you know what we’re working with. Taking it from the top, the cover has a unique property I haven’t come across yet, and I’ve tried out quite a few mattresses! It’s a quilting foam poly-cotton blend with super-soft quilted thermic phase change material in the fabric.

I’ve seen phase change material in the comfort layers of various products, and it’s proven to do a good job at keeping the mattress cool. Keep reading to see how our thermal testing went… let’s just say it was very impressive.

Introducing the Layers

Moving under the cover, the first 1-inch comfort layer is composed of gel-infused memory foam with the THERMIC® phase change quilted cover. I love how the contouring effect of the memory foam blends with the comfort offered by the quilted cover.

The next layer is comprised of 3-inches of Energex™ Temperature Responsive Foam. This material has an inherently high pressure relieving index, and this means it’s able to effectively reduce painful pressure points. According to Energex’s website, the pressure relieving benefit is best enhanced when the material is placed beneath memory foam and atop a coil spring unit, which Nest succeeded in doing.

Transition and Support Layers

Moving on, the third layer of features 1-inch of Transition Airflow High-Density Conventional Foam. This is where the mattress begins to move from comfort to support. The 8-inch Reinforced Edge Support Pocketed Coils work well with the comfort layers in reducing the excessive sinkage memory foam is notorious for. They also promote air flow, keeping the mattress sleeping cool. The layer lineup ends with 1-inch of SmartFlow Base Foam to tie the mattress together and provide stability for the coil unit. The entire mattress thickness is 14 inches.

Mattress Performance

I was very impressed with how the support coils add upward force while the three comfort layers are designed to provide contour. This type of construction always makes it feel like I lost weight or something. I can definitely pick up on the contour as the memory foam adapts to the curves of my hips, spine, and shoulders.

The bounce added by the springs and support foams make it really easy to move around and get in and out of bed. Something I noticed that’s rare for me is that I consistently woke up in the same position I fell asleep in when using this product. Using a sleep tracking device, I have learned that I usually toss a turn a little bit through the night, but it was just so easy to get comfy in this bed. If you struggle with finding that perfect sleeping position, I think this product could be a great investment.


Next, let’s examine firmness options and what to expect. You can choose between medium and luxury firm. Your weight is going to make an impact on what works for you. Generally, heavier people fare better with firmer mattresses while lighter people usually find they can achieve more hug and contour on plusher products.

I have the medium option and standing in the middle at 130 pounds, I sink in right at six inches. The average sinkage on the medium products I’ve tried is about 6 ½ inches, so this is just slightly firmer than what typical medium products feature. If you carry more weight, the luxury firm should be pretty accommodating.

However, if you’re really lightweight, you might want to consider the supplemental purchase of one of Nest’s toppers. You can add 1 ½ inches of natural, wool-filled cotton for cozy comfort or their signature cooling topper if you want to retain the memory foam contour.

Motion Transfer Reduction

If you have mobility issues, moving around in a reclined position can be challenging. Traditional memory foam often caused so much sinkage that it made it hard to move around. However, if you have too much bounce, it’s easy to disturb sleep partners.

We tested to see how the combination of visco foam and the pocketed coil unit worked to balance responsiveness, sinkage, and motion isolation. When I tossed and turned next to my 12-year-old son, you couldn’t see much movement in his body. He reported that he could feel it, but detection was minimal. Memory foam is known for motion transfer zapping qualities, so this was kind of expected.

Despite this, the mattress still exhibits impressive bounce when I dropped a 20-pound medicine ball on the bed. You can see these tests performed in our review video. I’ve found memory foam and spring combinations generally do well at providing a good balance in this respect.

Heat Transfer Capability

As we reviewed the layers, you may have picked up on the fact that the cover along with all four internal components incorporates cooling technologies. This is something we don’t see often. We’ve got the Thermic Phase Change Fabric in the cover, gel infusion in layer one, the benefit of a broad temperature performance range in the Energex foam with additional heat conductivity provided by the copper infusion, SmartFlow technology in layer three, and the final coil unit which breathes naturally by design.

We took a look at how well this combination worked using our thermal imaging camera. I laid on the mattress, heating it up for 30 minutes and then watched as it returned to a 64-degree Fahrenheit room temperature. Average in my experience is 10 minutes, but the Sparrow took just six. This is exceptional, and I would definitely recommend this product if you have struggled to stay cool. In a product with a strong reliance on visco foam, these results are pretty remarkable.

Durability Expectations

The savvy mattress shopper understands that the density of each foam layer is important to know in terms of durability expectations. However, many manufacturers realize that a lot of people don’t think to inquire about this information if it’s not directly provided.

I was impressed at how transparent Nest Bedding is when it comes to each foam density. Right on the main page for this model, you see each one listed clearly. Seeing these numbers, though, I’m not too surprised, because they are certainly brag-worthy.

In visco foam, you want a density of at least 3 pounds per cubic foot. Keeping in mind the top comfort layer gets the most wear and tear, I think Nest went the right direction with a pcf of four. The Energex foam has a 3.5 lb density, and the SmartFlow Support Foam weighs in at 3 pcf. As for the support coils, you want a total count of at least 800 for longevity, and this product goes above and beyond at 1,300. If you’re looking for a mattress that should easily last several years, these numbers are among the best I’ve seen combined into a single product.

Edge Support

The stability of the edge of your mattress is important. Not only does it add support when you sit on the side, but it also makes it easier to get in and out of bed. Spring coils are excellent at setting that solid foundation you need. When I moved in various positions, I felt pretty well supported. I can feel and you can actually see where I do sink in a little bit, but the depression in the mattress abruptly ends where the coils start. It’s super easy to get in and out of the bed, and I’m well supported when I lay on the edge, a big plus for sleep partners.


Special Note for Pet Owners

This is my cat, Saber. I felt it worth mentioning that, of all the mattresses in my house, and I have quite a few as you can imagine, this has been his go-to choice since I got it out of the box. He and I literally spent hours together testing this thing out this week. If you have furry friends who’ll share the bed, they seem to gravitate toward memory foam when given options, and I can imagine they do perceive the contouring effect. On the other hand, if you really don’t want pets on the bed, you may have to take steps to keep them out of your room.

Maintenance, Protection, Care and Warranty

I have tried out quite a few mattresses, and the Nest Alexander Signature Hybrid has definitely proven to be among the best when it comes to breathability. I think this could also prove to be an excellent solution for you if you suffer from serious back or neck pain, improper alignment, or painful pressure points that cause you to toss and turn. Using a blend of pocket coils and memory foam, this product offers relief from these conditions and a whole lot more.

If you think this could be a good solution for your needs, check out the FAQs section to review some information that will be important to know once you become a customer.

Nest Sparrow Signature Hybrid Reviews and Feedback

The various layers of hybrid mattresses are intended to play off of each other’s strengths and weaknesses. I was very impressed with how well Nest Bedding did at balancing bounce and motion transfer, and I think the many different ways incorporated to keep the mattress cool was very impressive, especially considering the strong reliance on visco foams in the comfort level. This has been one of my personal favorites when it comes to overall comfort, but I took a moment to see what other people had to say to give you a well-rounded understanding of this product.


  • Product sleeps very cool
  • Great bounce for a memory foam product
  • Good motion transfer for an innerspring product
  • Financing options are convenient for those on a budget


  • Some complaints of off-gassing
  • Product is very heavy and difficult to move
  • Takes a few hours for comfort layer to fully decompress, following unboxing

Who We Recommend the Nest Sparrow Signature Hybrid Mattress For

This was a highly impressive product that I’d recommend to my own friends and family. All foams are CertiPUR-US certified, and I just can’t get over how well Nest Bedding designed this mattress when it comes to breathability. There is no weight limit, so this helps if you are heavier and need something that’ll offer you long-term support and comfort. I’m not really surprised considering the impressive density you’ll find at each of the foam layers. I think this is an excellent mattress to consider if you:

  • Struggle with overheating at night
  • Need a product with excellent contouring abilities
  • Appreciate bounce but also want to balance motion isolation
  • Struggle with painful pressure points
  • Rely heavily on good edge support
  • Carry a lot of weight
  • Are looking for a sleep solution that will last several years


For the cost, you’re getting a terrific value with the Nest Sparrow Signature Hybrid mattress. The densities and coil count found within the various layers are indicative of a product that should last several years, and I was highly impressed with the many ways in which this product promotes good breathability.

There is no weight limit on this mattress. When you couple that with the excellent contour, I think this is a great product for those who carry a lot of weight. If you do need to move it, this product is pretty heavy, so you’ll definitely need some help. However, the side handles do make this task easier. I also appreciate that this product offers an industry-first Lifetime Comfort Guarantee. Overall, it’s a high-quality, comfortable mattress that should offer many nights of restful sleep.

Nest Sparrow Hybrid Mattress Specs

Material: Thickness: Coil Count: Density:
Gel-Infused Memory Foam 1 inch n/a 4 pcf
Energex™ Temperature Responsive Foam 3 inches n/a n/a
Airflow High-Density Conventional Foam 1 inch n/a n/a
Edge Support Pocketed Coils 8 inches 1,300 n/a
SmartFlow Base Foam 1 inch n/a 3 pcf.

Frequently Asked Questions

Is a Foundation Needed?

A box spring or foundation is strongly recommended to increase the longevity of this product.

Is a Mattress Pad or Protector Needed?

You don’t have to use a mattress protector, but it’s recommended to maintain the integrity of your cover and upper layers.

Does it Work on Adjustable Beds?


Are Returns Hassle-Free?

100% full refund during sleep trial.

What’s the Warranty?

Lifetime Comfort Guarantee.

Is There A Sleep Trial Available?

Yes. 100 nights.

Does It Need To Be Rotated?