Search  for anything...
Sweetnight

Sweetnight King Mattress, 12 Inch Gel Memory Foam Mattress in a Box, Plush Comfort King Size Mattress for Motion Isolation & Pressure Relief, Gray, Starry Night

  • Based on 238 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$508.13 Why this price?
Holiday Deal Ā· 4% off was $529.99

Buy Now, Pay Later

As low as / mo
  • ā€“ Up to 36-month term if approved
  • ā€“ No impact on credit
  • ā€“ Instant approval decision
  • ā€“ Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Eligible for Return, Refund or Replacement within 100 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Recently Viewed

Color: Grey


Size: King


Style: 12 Inch Foam Mattress


Features

  • [COOLING MATTRESS WITH 3-LAYER STRUCTURE] The king mattress combines different high density foam layers to provide support and cushioned comfort. The top layer is infused with cooling gel to help circulate body heat and facilitate cool sleep.
  • [PRESSURE RELIEF & MOTION ISOLATION] Sweetnight king size bed mattress designed to contour body shape for optimal pressure relief. The foam layers work in unison to circulate body heat and reduce motion transfer for comfortable undisturbed sleep.
  • [BREATHABLE COVER WITH STARRY NIGHT DESIGN] The star patterned design of Starry Night king mattress cover is inspired by the Big Dipper constellation, which aims to keep you quiet at ease throughout your evening.
  • [10 YEARS WARRANTY & CERTIFIED SAFETY] The foams used by this king mattresses are certified by CertiPUR-US, giving you a peace of mind. All Sweetnight mattresses come with 10 years warranty. If you have any questions, please contact us at any time.
  • [EASY SET-UP & MATTRESS IN A BOX] Sweetnight Starry Night king mattress is compressed and shipped in a box for simple setup. It fits most of all frames, such as box spring, floor, slatted base, flat platform, or adjustable bed.

Description

Sweetnight is a mattress and sleep solutions company that provides premium products to ensure a great night's sleep. We are committed to maximizing sleep comfort so you can relax and feel rejuvenated the next day. Our products are made with quality materials, with CertiPUR-US certification, and are all fiberglass free. Try our range of memory foam and hybrid mattresses today! Why Should You Choose Sweetnight Starry Night Memory Foam Mattress? - A Great Combination of Support & Cushion Comfort Our three layer design offers the best combination of cushioning and support to ensure a mattress that does not cause you to overheat or sink uncomfortably throughout the night. - Buy with Confidence This mattress comes with a 10-Year Warranty. If you feel the mattress isnā€™t the ideal fit for your needs or you have any questions about the mattress, just let us know and we'll help you out. - Quality, Safe & Certified Made with safe materials, CertiPUR-US certified, and fiberglass free, it's safe for your sleep. - Special Starry Pattern Design Our starry pattern concept draws its inspiration from the Big Dipper constellation. The design acts as a visual reminder to always remain tranquil and relaxed during sleep. What is in the box? 1x Sweetnight Starry Night Memory Foam Mattress 1x Sweetnight Opener 1x Manual & Warranty Card Note: - Please allow 48-72 hours for your mattress to regain its full shape. The rate of expansion is related to the temperature of the room. Most memory foam mattresses will expand faster in a warm room and will take longer in colder temperatures. - It's normal that there is an odor after unpacking the mattress. Place the mattress in a ventilated space for a few days and the smell will gradually disappear

Size: King


Special Feature: Pressure Relief


Fill Material: Gel Memory Foam, Memory Foam


Brand: Sweetnight


Product Dimensions: 80"L x 76"W x 12"Th


Color: Grey


Model Name: SN-M01504-NEW


Product Benefits: Pressure relief, motion isolation, breathable cover, support, and cushion comfort


Product Care Instructions: Hand Wash Only


Number of Layers: 3


Item Weight: ā€Ž97 pounds


Product Dimensions: ā€Ž80 x 76 x 12 inches


Country of Origin: ā€ŽIndonesia


Item model number: ā€ŽSN-M01504-12-K-NEW


Date First Available: February 24, 2023


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 100 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • The bed to rule them all! šŸ‘‘šŸŒŒ
Color: Grey Size: King Style: 12 Inch Foam Mattress
Review Image by Shaggy Shaggy
Review Image by Shaggy Shaggy
Review Image by Shaggy Shaggy
Review Image by Shaggy Shaggy
Review Image by Shaggy Shaggy
Review Image by Shaggy Shaggy
If you're researching memory foam mattresses and happen to land on this one, let me tell you, you've found a very wonderful option! I am IN LOVE WITH THIS MATTRESS! šŸ’–Took me some time getting used to, coming from a cheap Sealy Posturepedic Spring Mattress from Big Lots. It was breaking down and my boyfriend was lying in a pot hole and a good night's rest was very difficult for him. So I had to splurge on this one and was very nervous. My 1st "bed in a box," so to speak. I chose this because it seemed more reasonably priced than anything else I could find. He wanted to upgrade to a King from our Queen. So I had to buy a new frame as well. Overall, didn't want to spend a ridiculous amount of money for just a mattress alone. Of all the stores we went in to, all the research online, lead me to this one. Good price and had great reviews. Crossed my fingers. It arrived at the doorstep; a big heavy box. It didn't have any indication of the correct size other than the fact it had a big "K" on it. We hoisted up on to my newly put together frame and immediately after cutting all the plastic off, it began to inflate. It was pretty cool to see; took all of 5 minutes to reach full potential. It was a freaking BEHEMOTH! I was so nervous to have something so big, but excited after what we've been sleeping on previously. Such a drastic change! I was worried a "12 inch wouldn't be tall enough, because these things can go up to "14, but it is definitely enough. It's so tall! Goodness. I have to hoist myself up onto the bed. Nonetheless, I plopped on it right away. The thing that I love the most, is the way it inflated beautifully. The corners and edges are very cut and prominent. I like that. No sagging or dead spots. No lumps, no unevenness, just perfectly level all across the board. 2 months in, and it still holds up beautifully. No smell, no allergies, etc. Just totally clean and spotless. It's absolutely perfect. The feel, I expected it to be more plush, which is not at all bad. It's still very soft and comfortable. It's very different from a spring mattress that's for sure. It seems true medium-firm. No sinking, however, it cradles your body ever so slightly; contouring your curves and really feel you're getting a good balanced alignment within your body. I thought I would rather have a more "sinking" feeling within the mattress, but my body sits just ontop. Very dense and sturdy. I've managed to get used to it and feel like it's perfect now. I am currently using a brand new waterproof mattress protector, so that may have some added firmability. It's motion-isolating and quiet. Very roomy. And visibly appealing! Such an incredibly GORGEOUS pattern! šŸ˜ It almost sucks to have to put sheets on it. I feel like I wanna show it off somehow! I've bought satin sheets to lay on, for an even more cooling effect than it already has. Such breathability! I sleep so very good and wake up refreshed. I don't experience back pain like I used to when getting out of bed now. And my boyfriend sleeps like a baby. We don't wake eachother up by our movements anymore either. I actually look forward to going to bed now, even if to just to "hang out" in it. šŸ˜Š LOVE, LOVE LOVE! I think anyone who buys this, will be 100% pleased. I swear by it. I've paired this with a Zinus "Justina" frame, where it's practically a box frame and frame in itself. Also wonderfully priced, about $165 for a King. The mattress itself hangs off by an inch of the frame, but it's still amazing. I've left a review for that as well. I'm not 100% certain it will work with an adjustable frame, seeing as it's really dense. There is a hybrid version of this mattress, in blue, if you'd like one with springs. Be sure to check that one out. But this grey/black one, is all memory foam. All in all, if you wanna compare this mattress to something to help you decide, go to Mattress Firm, where they have Nectar mattresses on display. The best one, the Premium Copper, I laid on it and it was heaven. But didn't like the price! It was $1,499.00 for a King! Mattress only. You can't return it, only exchange. And the adjustable frame is non returnable. This bed is the exact same quality and a lot less money than you'd pay for a popular big brand. More bang for your buck. According to Sweetnight's brochure that comes with the mattress, it comes with a 10-year-limited warranty and 100-day-trial. It's a nice to know that it's covered, but I'm happy to say, I'm definitely keeping it with no complaints. Should I need to buy another, this is the brand I will buy from. It's worth checking out. I did and I couldn't be happier. If you like the Nectar bed in the store, you'll love this mattress from Sweetnight.šŸ–¤ ... show more
Reviewed in the United States on July 6, 2023 by Shaggy Shaggy
    • Good Quality!!!!
Color: Grey Size: Queen Style: 12 Inch Foam Mattress
Review Image by June June
Review Image by June June
I ordered this mattress for the guest room and have had three guests so far. Two say this mattress is perfect. The other one says itā€™s a great mattress but a topper would make it perfect. The shipping was a slower than I would have preferred but nothing too crazy. When you first lay on the mattress it feels pretty firm, but the memory foam provides a good sleep. Itā€™s also the perfect size for regular sheets and we donā€™t have to struggle with the sheets not going around or being too loose. If youā€™re looking for a mattress at a good price, this is the one! Recommend it!!! ... show more
Reviewed in the United States on January 17, 2024 by June June
    • IF U WANT A THICK COMFY MATTRESS LOOK NO FURTHER
Color: Grey Size: Queen Style: 12 Inch Foam Mattress
I have never bought a new mattress online and wasn't sure because of diff reviews. I was worried it would be weak around edges or not as thick as it says. But it's thick on the edges and is super comfortable and firm enough to not sink in but just a little when u lay down to support u. It's way better then paying 800 or 1800 for something. I would buy it again and it's black so it looks cool without sheets. I haven't had any back pain and fall asleep fast ... show more
Reviewed in the United States on April 21, 2024 by Dakotah K Luscinski
    • Holds shape very comfortable
Color: Grey Size: Full Style: 12 Inch Foam Mattress
Great value, I donā€™t wake up with a sore back. Really good quality.
Reviewed in the United States on May 2, 2024 by Amazon Customer
    • Medium firm comfort with snazzy dark cover
Color: Grey Size: King Style: 12 Inch Foam Mattress
This is my second buy from this brand. I was hoping this would be a little more plush like the other version I bought in a smaller size. I like the convenience, price, and weight of this bed in a box especially in comparison to the ridiculously heavy hybrids that are popular. We move a lot for work and this will be more versatile. I especially like the appearance of the dark cover. I use a mattress cover anyway but when you take the sheets off to wash (or move), this is prettier to look at and shouldnā€™t have to worry about discoloration or dirt stains like can happen to the typical white mattress. I was concerned the dark would be a problem for lighter sheets that it might show through but I havenā€™t noticed it so far. Even though I wish the top layer was a little more plush than squishy, I am happy with this mattress. It is comfortable and Iā€™ve had no shoulder, back, or hip pain when sleeping on it. I fall asleep on my side but I sometimes wake up in the morning on my back, so apparently both positions are quite comfy on this mattress. Also, Iā€™ve had no issues with overheating on this mattress as Iā€™ve experienced with other brands. ... show more
Reviewed in the United States on March 6, 2024 by MA
    • This is a great value for a very comfy bed.
Color: Grey Size: Queen Style: 12 Inch Foam Mattress
First off, after unboxing it, this plumed up to it's full 12 inches in less than 8 hrs for me...I made sure to turn the heat up in the house a bit....maybe it helped? This is my 2nd PLUSH memory foam mattress. I liked my 1st one(got a good 8 years out of it) & I'm really digging this one so far. It's a tad more firm than straight up plush...between plush/med...comfy & supportive...cradles you with only a tad bit of sinkage. The edges of this foam mattress are pretty supportive as well compared to some others I've sat on...including my old one. Bottom line, my gf & I are very pleased with it...she's zonked out on it as I type this review. =) ... show more
Reviewed in the United States on February 1, 2024 by timothy paul
    • so comfy
Color: Grey Size: King Style: 12 Inch Foam Mattress
my back and hip pain are gone and partner tosses and turns at night he hasnā€™t since we got this bed
Reviewed in the United States on April 1, 2024 by Jessica
    • Perfect Firmness For Me
Color: Grey Size: Full Style: 12 Inch Foam Mattress
Just making a quick review. I took a gamble on this mattress since it had only 50 reviews at a 5 star rating when I bought it; I thought maybe it could be bots or spam, but alas this mattress truly is everything I wanted it to be. The mattress/mattress cover looks great, it's firm but not like sleeping on pavement, and it expanded to its intended size in about two hours or so for me. I gave it about 12 hours before sleeping on it, ignoring the 24 hour rule, and it was definitely enough time for it to expand. The corners aren't sharp and pointy; they're just roundish. The bottom of the mattress cover has rubber grips, which helps a lot on a platform bed frame. In conclusion, if you're looking to save money without losing quality and you want a firm mattress, this is the one to buy. Stop hesitating and just do it. Keep in mind, it's memory foam and can get warm when sleeping! ... show more
Reviewed in the United States on July 21, 2023 by Cameron Branch

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...