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Nectar

Nectar Classic 12” Cal King Mattress - Medium Firm - Contouring Memory Foam - Cooling Top Layer - Back Pain Relief - Mattress in a Box - 365-Night Trial & Forever Warranty

  • Based on 9,122 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Jul 10 – Jul 11
Order within 16 hours and 29 minutes
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Size: California King


Style: Classic 12"


Pattern Name: Mattress


Features

  • SIMPLE TO SET UP - Just move the box to the room you want to use it in, unbox and unroll your mattress, and watch it expand before your eyes. Your Nectar will be snooze ready in 24 hours!
  • THE NECTAR SLEEP SYSTEM - Introducing our signature combination of fabrics and foams that makes up the top three layers of every Nectar mattress. We combine breathable cooling fabric, contouring memory foam, and dynamic support foam to deliver the most restful and rejuvenating sleep youll ever experience.
  • PERFECT SUPPORT FOR ANY POSITION - Whether you're a side sleeper, back sleeper, stomach sleeper, or somewhere in between, Nectar offers the optimal level of firmness, coolness, breathability, and comfort.
  • SAFE & FIBERGLASS FREE - Your Nectar mattress is made without ozone depletors, mercury, lead, formaldehyde, phthalates and other harmful substances that can be in consumer products
  • RELIVIEVES BACK PAIN - Contouring memory foam layer relieves pressure and reduces stress on high-tension areas like your hips and back, and adaptive support layer promotes proper spinal alignment for long-term comfort and wellbeing

Description

JOIN MORE THAN 5.5 MILLION HAPPY SLEEPERS. Experience the ultimate in sleep innovation with The Nectar Sleep System. The Nectar Sleep System combines breathable cooling fabric, contouring memory foam, and dynamic support foam to deliver the most restful and rejuvenating sleep you’ll ever experience. Try it for yourself and discover why Nectar is America’s most awarded mattress brand.

Brand: Nectar


Size: California King


Product Dimensions: 84"L x 72"W x 12"Th


Item Weight: 93 Pounds


Item Firmness Description: Medium Firm


Top Style: Tight Top


Cover Material: Cotton


Number of Layers: 5.0


Fill Material: Memory Foam


Weight Limit: 800 Pounds


Item Firmness Description: Medium Firm


Number of Layers: 5.0


Weight Capacity Maximum: 800 Pounds


Additional Features: 365 Night Trial, Back Pain Relief, Breathable and Cool, Low Motion Transfer, Pressure Relief


Construction Type: Memory Foam


Portable: No


Is Foldable: No


Size: California King


Item Dimensions L x W x Thickness: 84"L x 72"W x 12"Th


Item Weight: 93 Pounds


Item Thickness: 12 Inches


Item Dimensions: 84 x 72 x 12 inches


Item Depth: 12 inches


Cover Material: Cotton


Fill Material: Memory Foam


Product Care Instructions: Do not remove cover or dry clean; use a mattress protector


Mattress Comfort Layer Material: Comfort Foam, Memory foam


Material Type: Memory Foam


Brand Name: Nectar


Model Name: Nectar Mattress


Product Benefits: Contouring Memory Foam, Cooling Top Cover, Medium Firm & Supportive, Motion Isolation Foundation Base, Pressure Relief


Model Number: ncfmclasea-scalking


UPC: 810100398842


Manufacturer: Nectar


Set Name: Nectar Classic Mattress Set


Manufacturer Part Number: ncfmclasea-scalking


Unit Count: 1.0 Count


Included Components: Mattress


Age Range Description: Adult


Item Type Name: Bed Mattress Conventional


top-style: Tight Top


Color: White


Shape: Rectangular


Style Name: Classic 12"


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 10 – Jul 11

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great mattress with a great price!
Size: King Style: Classic 12" Pattern Name: Mattress
It would have been nice if unpacking instructions were included, but it turned out to be quit easy. It does require some "man handling" but that is to be expected. The comfort description is correct. The only thing it doesn't have, is side bolsters. Personally I don't like them, but some folks may. I'm satisfied. ... show more
Reviewed in the United States on July 1, 2026 by Alan
    • Who knew that mattress shopping could be so easy?
Size: Twin Style: Classic 12" Pattern Name: Mattress
Amazingly easy and so much more comfortable than the mattress it replaced. No odor, inflated quickly. For my size 150ish pounds, it is firm and solid, a little too firm for side sleeping, but I just popped the old topper in cover on this and it is wonderful. If you need extra support around edges because you like to sit and tie shoes, it may not be the best choice, but I am loving it. On sale it was a wonderful deal, and I'm so glad I purchased after reading reviews around the web ... show more
Reviewed in the United States on June 2, 2026 by SM
    • Not What We Hoped For-EDITED! It’s perfect!
Size: Queen Style: Legacy 12" Pattern Name: Mattress
We’ve had this mattress out for almost 72 hours with 2 nights of sleep. Was not impressed. #1 our mattress never went to its full size. Each corner was dented in and it caused the middle to be much higher than the rest of the bed. 2. It advertised this mattress as a 6.5 between firmness and softness. We needed some sort of firmness so that I could breastfeed, yet be soft enough to be comfortable. I haven’t found firmness. After sitting (or applying too much pressure at pressure points of the body) I sink so far in that my MIDDLE BACK feels the mattress. This also makes it extremely hard to breastfeed. When trying to adjust, the baby sinks into the pressure spots (as I apply more pressure than she does due to adult vs child). Even after NUMEROUS pillows, there is just no support, especially since the mattress never evened out. 3. The last 2 nights of sleeping on this mattress, I’ve awaken with pain in one of my legs. (I have to sleep on my side to breastfeed and I alternate throughout the night). And the pain hasn’t died down. This mattress was advertised to ease pain, not cause it- but I’m having the opposite effect. Ultimately, we will be trying to return this ASAP. Update!: we decided to keep it a little longer and allow it to shape/form correctly. We placed it on an actual bed support and it was immediately a change for the better. I’m not sure if all the cushion on carpeted floor was the reason, but it was night & day after putting it on a platform bed. Super comfortable, and the movement doesn’t effect everyone sleeping in the bed. Reminds me of that wine commercial mattress. I haven’t done wine, but I’ve done a glass of water and it held place while I got off the bed. It hugs your body without making you feel like you’re sinking into the mattress. Super comfortable & the mattress shaped itself out in a few days after my initial review. No body pains, better sleep, and even my husband doesn’t snore as much or as loud when he does snore. Definitely such a difference from when he falls asleep on the couch watching tv. SO grateful we gave it time & kept it! Definitely a gem for a fraction of the cost of other mattresses. 💯 ... show more
Reviewed in the United States on March 8, 2022 by Cori Hicks
    • A solution to my poblem!
Size: Twin Style: Legacy 12" Pattern Name: Mattress
I loooove the mattress. My daughter usually goes to our room to sleep with us. So I tried everything to make her sleep more comfortable that she wouldnt want to get out from bed. Added pillows, stuffed animals, weighted blanket, comfy room with dim light, lullabies, name it.. She can’t seem to sleep throughout the night. Until I thought of changing her memory mattress and bought this one. Ohhh!! So comfy. Even I couldnt resist of lying down in it. Now, her habit of going to our room lessened. I never regreted buying this! ... show more
Reviewed in the United States on May 25, 2026 by Three
    • good mattress
Size: King Style: Classic 12" Pattern Name: Mattress
replaced an old mattress that had been special ordered overseas many years ago. great so far. a little stiffer than i expected, but, from what I understand, it learns your body shape over time. No issues so far
Reviewed in the United States on July 2, 2026 by Kindle Customer
    • Very solid mattress!
Size: Queen Style: Classic 12" Pattern Name: Mattress
I write this review nearly 10 months after purchase. As with anything that can wear over time- you never know what you will get until you have ridden it out just a little bit. PROS: -Slightly lighter than most memory foam -Stays cooler than most memory foam -10 months in, we do a 180 rotation every 3 months, switch sides every 3 months. NO PERMANENT DIVOTS YET! -easy to move on when adjusting in the middle of the night unlike some memory foam mattresses. - Cover comes off, easy to clean, doesn't hold much body soil anyways. CONS: -if you don't have dog legs on your frame, or a recess for the mattress it will slide very easily. - Fabric pills very easily on the cover, even after removal. Overall- Happy with the purchase, quality, and nights sleep I have had on this since purchase. Would buy again. ... show more
Reviewed in the United States on June 2, 2026 by Ian Hoyt
    • Great mattress, change shipping method
Size: Twin Style: Classic 12" Pattern Name: Mattress
We haven’t had it for long but this feels like a great mattress so far. Soft and supportive at the same time. Such a great value for the price. However, shipping was a real hassle. Amazon shipped this through USPS. The day it was supposed to arrive, the mail carrier left us a note that said it was too big to deliver. They left this note in the mailbox, not at our doorstep so by the time we got it, the post office was closed for the weekend. Went to the post office during the work day, waited in a long line, and they had the package. Luckily, the gentleman helping me helped carry it to my car. Amazon/Nectar should change shipping methods ASAP, as the whole point of ordering a mattress on Amazon is to have it delivered to me. ... show more
Reviewed in the United States on June 15, 2026 by Kitty
    • It’s a nice mattress
Size: Full Style: Classic 12" Pattern Name: Mattress
The mattress is ok. I replaced my 12 yr old Icomfort queen mattress with the full 12” med firm. Although it isn’t my Icomfort, it’s pretty good. I didn’t pay the money I did for my older mattress. I sleep well on it arthritis and pain isn’t any more bothersome than before. I get a pretty good sleep, if not it’s not due to the mattress. I feel it’s a pretty good mattress. It did reach 12” within about a day and half. ... show more
Reviewed in the United States on May 29, 2026 by JJ

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