Customer Reviews for Sleep Science 9" Natural Latex King Mattress with Foundation

Sleep Science 9" Natural Latex King Mattress with Foundation

The Sleep Science 9” Natural Latex is truly natural.  This luxurious latex mattress has been developed for those that seek a more natural sleeping environment.  This mattress is comprised of 2 layers of natural latex.  The top 3 inches has been crafted to create a soft initial feel with the slight bounce of latex.  The next 6 inches of natural latex is made to offer optimal support, while still allowing for comfortable conformity to the body.  Natural latex is derived from the rubber tree and is transformed into the most durable sleep surface available on the market today. These latex layers are made using the Talalay method to create a durable, pressure relieving sleep surface.  This natural latex mattress is resilient, supportive and conforming.  The breathability of natural latex is unrivaled and keeps the body warmer in the winter and cooler in the summer.  The feel of latex is plush, yet offers instantaneous recovery and support. The mattress cover is made of 37% organic cotton and the fire retardant properties are chemical free.  The mattress cover is quilted using wool and an inherent fire retardant fiber in order to pass the stringent 1633 and 1632 Fire retardant certifications.  The Sleep Science Natural Latex mattress is all natural for those seeking a luxurious sleep experience in a healthier sleep environment.   Bed frame is not included Sleep Science comfort scale: medium with a bounce 1633 and 1632 compliant with chemical free wool and inherent fire retardant fiber fill Limited Warranty: 20 Years Mattress top layer = 3” of natural latex which creates a soft feel with a slight bounce Bottom layer = 6” of natural latex allowing optimal support Latex layers are laminated together with water soluble glue Tested for harmful substances according to the Oeko-Tek Standard 100. Antimicrobial tested Antifungal tested Allergen tested Sleep Surface fabric = 37% organic cotton, 61% polyester and 2% spandex Made in the USA King Mattress dimensions: 76” W x 80” L x 9” D; Weight: approx. 148 lbs Sleep Science Folding Bed Foundation: The easy 1-2-3 assembly Sleep Science Folding Bed Foundation coordinates with the Sleep Science mattress to provide optimal support and comfort in a complete sleep system. The Sleep Science Foundation has a solid wood top and reinforced metal legs. The long legs allow for added storage underneath the bed. The foundation can be used to stand alone or it fits easily into an existing bed frame instead of a box spring. The solid wood surface is optimal for supporting specialty mattresses. The Sleep Science Folding Bed Foundation was designed for easy assembly. Simply follow the instructions included in the box. It only takes three easy steps and can be assembled in 5 minutes!   1. Unfold the frame 2. Attach the legs 3. Put the cover on Fits inside most bed frames   Meets the requirements of 16 CVR Part 1633 – Federal Flammability (open flame) Standards   Easy to assemble, no tools required   Designed specifically for Sleep Science specialty mattresses   Solid top surface instead of wire that can damage a mattress after prolonged use   Includes a matching foundation cover which is machine washable King Foundation dimensions: 74” W x 79” L x 14” D; Weight: approx. 147 lbs If you have questions regarding this product, assembly of furniture or product operation, please call 800-723-0316 and ask for the Customer Service Department related to Costco.
Average Customer Rating:
3.333 out of 5
 out of 
(6 Reviews) 6
(out of 6 reviews)
Open Ratings Snapshot
Rating Snapshot (6 reviews)
5 stars
4 stars
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4 of 6(67%)customers would recommend this product to a friend.
Customer Reviews for Sleep Science 9" Natural Latex King Mattress with Foundation
Review 1 for Sleep Science 9" Natural Latex King Mattress with Foundation
5 out of 5
5 out of 5
Location:Denver, CO
Date:July 12, 2014

Review After 1 Year

Pros: support, resiliancy, inner-spring like bounce
Cons: heavy/awkward
"I wanted to give us a long window prior to reviewing. We've had several inner-spring mattresses and while all were comfortable, over time they develop large depressions and the comfort level declines until replaced. Between memory foam and Latex, we went the latter route since we wanted cooler sleeping (latex breathes better). We also wanted the near immediate bounce-back of latex.
I'm 200 lbs and 6' 5", and find the mattress perfect. I sleep better and wake up with more energy and less stiffness. My wife, 135 pounds and 5' 8", finds it very supportive but she added a soft mattress pad as it was initially a little firm for her. The mattress itself is very heavy and awkward, so plan on two strong adults to struggle moving it. We've noticed absolutely no depressions or wear, a full year in. All in all it's an expensive (though good deal for latex) mattress but one that we really like and look forward to many years of use."
Review 2 for Sleep Science 9" Natural Latex King Mattress with Foundation
1 out of 5
1 out of 5
Location:rancho mirage, california
Date:July 29, 2014

thanks costco return policy

"i felt quality deteriorated after first 2 months, returned it back after 6 months of buying, left with back pain, is definitely not for people who toss and turn most of the night and are poor sleepers like myself, i am going to buy the firmest mattress that i can find"
Review 3 for Sleep Science 9" Natural Latex King Mattress with Foundation
1 out of 5
1 out of 5
Date:January 25, 2014

Lasts for 20 years?

Pros: few short hours of strong latex smell then nothing
Cons: not for side sleepers
Model Number: Sleep Science 9" Natural Latex King Mattress with Foundation
"I'm a side sleeper. I did my homework speaking with one of the owners at the manufacturer's business in Cali - direct questions posed about impact on cotton and latex for side sleepers.
The owner ASSURED me this would not breakdown before the 20 year life expectancy had come and gone.
Two short months later, my back is killing me!!! Wouldn't you know it - a sag has developed at the same location of the bed where my hip rests...SURPRISE!!!
Recently placed a call to same owner who was reportedly out of town that day. I called back again (different employee than first call) - I went thru the explanation and issue and learned this person had exact same bed, also a side sleeper, and exact same problem developed within a few months!
Employee advised they opted for Sleep Science's Black Diamond bed and it is working out just fine/has held up for lengthy time now.
It's been two weeks and still no response from owner.
Thank God for Costco return policy - I'm returning bed to Costco"
3 of 3 people found this review helpful.
Review 4 for Sleep Science 9" Natural Latex King Mattress with Foundation
5 out of 5
5 out of 5
Location:Sonoma, CA
Date:January 27, 2014


Pros: great selection online., check them out at the local costco warehouse.
Cons: they make them when you order. worth it though!
Model Number: #758490
"We needed a new mattress. My needs was a natural product. My husband's needs are pretty finicky when it comes to anything. I was seriously looking at different retail stores at this type of bed. I was thrilled to find it at Costco! We love how the adjustable base works for reading or watching TV. It is easy to operate. The bed is so incredibly comfortable! All our old queen sheets fit perfectly! We are both sleeping well thru the night!"
1 of 2 people found this review helpful.
Review 5 for Sleep Science 9" Natural Latex King Mattress with Foundation
3 out of 5
3 out of 5
Date:October 16, 2013

Great mattress but sits low

Pros: very comfortable
Cons: height is not adjustable
"We wanted to go all out for a nice new king mattress. Although this one is pricey, we figured that we could always return it through costco. After ordering, we got a call from Bob, one of the owners of the Sleep Science company asking us to call if we had any problems and to please write a review if we liked the mattress.
Well, the mattress is very comfortable. We have been very happy with the feel and don't feel the bed move when one of us rolls over.
However, in spending this kind of money for a premium mattress and foundation we figured it would have an adjustable enough height to fit inside our bed frame. Turns out it sits pretty low. Our headboard now has about 3 inches of space between it and the mattress. That may not seem like a lot, but it is big enough for a pillow to fall through. Plus, it just looks awkward.
For perspective, our headboard starts at 25" above the ground, the mattress rests about 22" above the ground. Our other mattress on a lower frame in the other room is 26" above the ground.
I tried calling sleep science on this one. First I left a message for Bob. He never called back. Then I talked to the customer service person. She pretty much told me I was out of luck, though "some people complain that the bed is too high".
I think we are going to try to find a product to prop up all 12 legs of the foundation about 4 inches. If that works well we'll be pretty happy. If not, I think we'll have to choose between an awkward space at our headboard, buying a new bed frame, or returning the mattress."
3 of 3 people found this review helpful.
Review 6 for Sleep Science 9" Natural Latex King Mattress with Foundation
5 out of 5
5 out of 5
Location:Denver, CO
Date:June 27, 2013

Restful Sleep

Pros: firm but comfy, a "green" matress.
"We ordered the bed despite no reviews and were quite nervous but then figured we had nothing to loose with Costco's return policy. The bed arrived in 3 weeks and did have a smell but that was excepted. By the time we went to bed at night the smell was pretty much all gone. The bed is firm. I am struggling not having the cushy feeling but my husband loves it. He no longer has back pain and I no longer have pressure point issues which is amazing. I did have issues with my arms falling asleep for a week but I read that it can be normal when adjusting to firm beds. We have had the bed for 2 weeks now and so far we are super happy."
4 of 4 people found this review helpful.