GhostBed Flex Mattress Review

The GhostBed Flex is the third mattress under the GhostBed brand produced by Nature’s Sleep.  Nature Sleep took the most successful parts of its first two offerings and created a cool-sleeping, memory foam and innerspring coil hybrid they call the GhostBed Flex.

Our Verdict: If you’re in the market for an innovative, yet affordable hybrid mattress then the GhostBed Flex may be for you. With gel-cooling technology, the comfort of memory foam, and a durable innerspring coil layer, the GhostBed Flex can accommodate many different types of sleepers. The GhostBed Flex features great edge support and individually wrapped coils which reduce motion transfer, making this an ideal choice for couples.

Who the GhostBed Flex is Best For

Best For…

May Not be Best For…

Those who sleep hot

Couples or co-sleepers 

✅Heavyweight sleepers would appreciate the coil support layer.

✅People on a budget

Those who prefer a traditional mattress; the GhostBed Flex is a hybrid mattress that features both memory foam and innerspring coils.


The GhostBed Flex is the third mattress under the GhostBed brand produced by Nature’s Sleep. Nature’s Sleep has been in the online mattress game for 15 years, so the company has also been working to improve and enhance their mattresses to improve sleep quality for 15 years.

The company took the most successful parts of its first two offerings and created a cool-sleeping, memory foam and innerspring coil hybrid they call the GhostBed Flex.


Consider these features when you’re looking at the memory foam GhostBed Flex mattress:

  • 13-inches of memory foam and coils
  • Uses most of the same cooling technology in Luxe version
  • Limits motion transfer like other memory foam offerings
  • Added rim of reinforced coils around coil layer for stronger edges
  • Suitable for all types of sleepers
  • Coil support layer is good for heavier sleepers
  • Free shipping
  • 101-night trial period
  • 25-year limited warranty
  • Made in the USA

GhostBed Flex Mattress by Sleeping Position

Back Stomach Side Combination
✅Heavyweight back sleepers would feel well-supported by the coil layer

✅Provides excellent spine alignment

❌Some strict back sleepers may prefer a firmer bed with sturdier support

✅Contours to your body while supporting your chest and shoulders

❌May not be firm enough to adequately prevent hips from sinking

✅Contours to your curves when lying on your side

❌Lighter side sleepers may want a softer mattress for more pressure relief

✅Extremely responsiveness

✅Does an impressive job at motion isolation

Back Sleepers: Back sleepers require proper support for their lumbar region in order to keep the spine aligned. Spine alignment is important for promoting a healthy posture and relieving back pain. That’s why the GhostBed Flex is a smart choice for back sleepers; the durable coils offer superior spine alignment, promoting a straight back all night long.  See all of our top picks for Best Mattresses for Back Sleepers.

Stomach Sleepers: If you are a strict stomach sleeper, its critical you consider the firmness level of your mattress. A softer bed will run the risk of hip sinkage, causing your spine to curve inwards. The GhostBed Flex uses a nice blend of foam and coils to smoothly contour to your curves, and the bed’s medium-firmness provides ok support to keep your hips elevated. Some stomach sleepers may need a firmer bed to prevent their hips from sinking.

Side Sleepers: The GhostBed Flex has many qualities side sleepers need for a rejuvenating night’s rest. A soft foam layer contours to your body, providing pressure relief for areas of tension and helping to distribute weight evenly, keeping weight off of your hips and shoulders. However, because the bed falls somewhere in the middle of the firmness scale, some side sleepers may prefer a more plush bed for greater pressure relief. For more options see our Best Mattresses for Side Sleepers guide.

Combination Sleepers: Combination sleepers would really enjoy this GhostBed mattress thanks to its quick responsiveness and ability to minimize motion transfer. The responsive innerspring coil layer combined with the memory foam layers works to isolate motion and move with your body as you shift throughout the night. Couples and co-sleepers would rarely feel their partner’s movements on this mattress.



The GhostBed Flex is a 13-inch thick, memory-foam-and-coil hybrid mattress.


GhostBed Flex utilizes most of the same cooling features that the Luxe features use—cooling fibers in the fabric, quilting of the cover, infusing gel that will absorb and dissipate heat into the support layers. In addition to that, coil mattresses always have good airflow because of the space between the coils themselves. Heat doesn’t get trapped there.


Because it has coils in the support layer, the GhostBed Flex will sleep slightly firmer than its Luxe edition, which is considered softer than medium firm. Do the math and it should be considered medium firm.

This mattress is designed to accommodate sleepers “of all shapes and sizes” but lighter and heavier customers by body weight will exert less and more pressure on the mattress, respectively. The GhostBed Flex may feel and sleep differently for anyone who hits those extremes.

Edge support

Most mattresses with a coil layer will do a solid job holding up weight around the edges of the unit. This is important if you sleep with a partner and need to sleep on the entire mattress surface.

The core of the GhostBed Flex features both the regular base of coils and an additional two rows of coils around the edge to reinforce the edges of the mattress and allow couples to use the whole thing. You’ll also be able to sit on the edge without feeling like you’re gonna slip off.

Motion transfer

Couples or people who sleep with their children or pets, should pay close attention to how well a mattress stops motion from traveling from one side of the bed, where you are sleeping, to the other side where a partner might be shifting around.

Foam mattresses usually do an amazing job of this; innerspring coil mattresses less so. The GhostBed Flex is a hybrid so both factors are at play. However, the coils in the Flex are individually wrapped; that reduces motion transfer.


The GhostBed Flex is made of seven layers. Again, the selling point here is that the layers combine the cooling aspects of the Luxe version, the comfort of memory foam, and a durable, responsive innerspring coil base layer to accommodate many different shapes, sizes and types of sleepers.

The cover is quilted, which enhances airflow to let heat dissipate. The second layer is 1 inch of cooling fibers woven directly into the cover, again to increase the amount of air flowing through. The third layer is 1 inch of gel-infused memory foam. The gel transfers heat away from the body.

The foam acts like any memory foam in that it will cover around your body and help keep your spine aligned. That’s why GhostBed added another inch of gel-infused memory foam just below for a fourth layer.

Leyer No. 5 is what is known as a transition layer. It measures 1 inch is slightly denser, but still conforms to the body. It’s called a transition layer because it will cushion your body from sinking straight into the coils. It eases the transition from the comfort to the support layer.

The sixth layer is 8 1/2 inches of reinforced and individually wrapped coils. The coils make this mattress extremely durable. It will hold up sleepers of all weights and will give you the 7-to-10 years of use everyone should expect from a quality mattress. This layer includes an additional 1 1/12-inch of specially reinforced coils around the edges of the unit to enhance edge support.

The seventh layer is a final inch of solid medium density foam beneath the coils, added for durability. 

Science is cool!


Here is a breakdown of the GhostBed Flex mattress:

Size Price Dimension Weight
Twin $1,145 38” x 75” 76 lbs
Twin XL $1,350 38” x 80” 81 lbs
Full $1,475 54” x 75” 100 lbs
Queen $1,645 60” x 80” 122 lbs
King $1,945 76” x 80” 138 lbs
Cal King $1,985 72” x 84” 141 lbs


13 inches



The GhostBed Flex comes with a 101-night trial period. That amount of time sounds amazing. And while it is longer than industry standard, it’s a longer term than industry standard by only 24 hours. Also, your trial period will start on the day the mattress is shipped (not on arrival day).

After 30 days and before 101 days, you can initiate a return with GhostBed if the mattress just doesn’t work for you. GhostBed will look to fix what is wrong or give you a refund, depending on the situation. GhostBed will not take the mattress back. It does suggest if you do want a refund, to donate it to a charity of your choice.


The GhostBed Flex mattress is backed by a 25-year limited warranty. That falls between an industry-standard 10-year version and lifetime (the life of the mattress for the original owner) warranties. Remember that mattresses should be replaced every 7 to 10 years regardless of the warranty term.

GhostBed will decide whether the mattress can be repaired or should be replaced, minus shipping and handling costs for getting the unit back to them.

Also, for the first 10 years, the limited warranty covers sags or body impressions greater than 1 inch or any material flaw that causes the mattress to split. If you don’t use the mattress on a solid base, boxspring or adjustable base, the warranty is void. The warranty doesn’t cover normal wear and tear or abuse by the owner.

From years 11 through 25, GhostBed may repair the mattress minus the shipping costs, or replace it at a prorated price ranging from 50 percent of the original purchase price in year 11 to 55 percent of the original price in years 21-25.

Delivery & Setup

GhostBed says it will have shipped your mattress to you within 24 hours of you ordering it. Since all of the mattresses are manufactured stateside, it should arrive within 3-5 business days. GhostBed does ship via FedEx for free, unless you live in Alaska and Hawaii. To ship to either state costs $600. Sales to residents in either place are also final.

The GhostBed Flex is delivered vacuum-compressed and rolled in a box. You will likely need someone to help you handle it. The twin weighs in at 76 pounds, the queen 122 and the King 150.

It’s fascinating to think that someone can ship a mattress in a box to your door.  But know that, once freed from its plastic wrapping, the GhostBed Flex will take somewhere from several hours to several days to re-inflate to its full thickness. That time depends on temperature, humidity, etc. It’s not a bad thing; it’s just a small price to pay for the convenience of buying a mattress in a box..

Customer service

The customer service folks behind GhostBed will field calls or chat online with you during regular business hours 7 days per week. You can email them as well.

GhostBed will work with consumers to find the right solution if the Flex hybrid doesn’t quite meet your expectations. They reserve the right to offer an alternative, repair any accepted defects listed in the warranty, replace the mattress or refund the price if you “return” the mattress.

We say “return” because you don’t give the mattress back. You will be responsible for getting rid of the GhostBed Flex mattress they sent you. GhostBed won’t reclaim the actual mattress, but refund your payment if you ask for a refund after 30 days and before 101 days.



GhostBed Flex was built for everyone. The reality is no single mattress can accommodate every type, size, and shape of the sleeper. It may be a good fit for most and that is what the GhostBed Flex is really trying to achieve.

GhostBed put in the work. The Flex combines most of the cooling features of the GhostBed Luxe and the contouring or memory foam with a coil layer that should give the bed both durability and bounce. The bounce is important because, unlike some all-foam mattresses that you sink into, it will help you get out of bed.

Hybrid mattresses are usually good for heavier sleepers you will put more pressure on the mattress and engage all of the support layers. It should work well for combination sleepers, too, because of the amount of gel-memory foam that is used in the top layers.


Will I experience any off-gassing with the GhostBed Flex? 

There is a faint smell when you first unbox your new GhostBed Flex mattress, but this will dissipate quickly and is harmless. All of the materials used in the GhostBed are CertiPUR-US certified meaning they contain no harmful chemicals or heavy metals.

How much weight can the GhostBed Flex support?

The GhostBed Flex can support up to 750 lbs as long as its placed on a strong foundation like a boxspring or adjustable base.

Is there a break-in period for the GhostBed Flex?

When you first unbox your GhostBed Flex, it may take a few hours for the mattress to fully expand, breathe, and adjust to your room’s temperature, but you can still sleep on it almost immediately. A new mattress is a big change for your body so keep in mind it may take a night or two to adjust.

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