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Sweetnight

Sweetnight King Size Mattress 12 Inch, Memory Foam King Mattress in a Box for Pressure Relief & Motion Isolation, CertiPUR-US Certified Plush King Bed Mattresses

    • Based on 251 reviews
Condition: New
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$241.37 Why this price?
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, May 11
Order within 4 hours and 44 minutes
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Style: 12 Inch


Color: White


Size: King(New)


Features

  • ULTRA BREATHABLE & COZY: The breathable fabric cover of plush king memory foam mattress provides a cool, smooth touch to your skin and the Wave-cut Foam will effectively dissipate your body heat, reducing heat accumulation. Meanwhile, the AirSquare Support Foam has much extra air space, which means it can improve breathability. Say goodbye to hot sleep and enjoy ultra-breathable sleep.
  • SOFT WITHOUT ANY DISTURBANCE: High-quality comfort foam of 12 inch king mattress offers proper softness for superb pressure relief and contours body curve perfectly with motion isolation. 30% extra natural material is added to absorb odors and sweat, lessening tossing and turning at night.
  • IMPROVED SUPPORT & DURABILITY: High density supportive foam made of upgraded material improve the durability and reduces sagging. The edge support on both sides of the mattress is reinforced to prevent slipping when sitting on the bed edge. This king foam mattresses accommodate with most back sleepers, stomach sleepers and side sleepers.
  • TRUSTED & CERTIFIED: Rest easy knowing Sweetnight mattresses are CertiPUR-US certified and OEKO-TEX certified, which stands as a trustworthy choice for the health-conscious sleeper. Compatible with various bed frames, Sweetnight king size foam mattress comes with a 10-year protection and 100-nights trial, ensuring a decade of worry-free, rejuvenating sleep.
  • EASY TO SET UP: King size mattress in a box will be deliveried with vacuum-sealed packaging and can be set up effortlessly within 30 minutes. Please refer to our unpacking instruction video and allow it to rest in room temperature for 24-72 hours to fully expand. ( Higher temperatures will expand faster while lower temperatures will be slower.)

Brand: Sweetnight


Size: King(New)


Product Dimensions: 79.92"L x 75.98"W x 12"Th


Top Style: Pillow Top


Cover Material: Cotton or Polyester


Number of Layers: 4


Fill Material: Memory Foam


Special Feature: Pressure Relief, Breathable


Color: White


Model Name: SN-B-M01901-N1


Item Weight: ‎57.1 pounds


Product Dimensions: ‎79.92 x 75.98 x 12 inches


Country of Origin: ‎Indonesia


Item model number: ‎SN-B-M01901-N1


Date First Available: December 4, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Well made
Style: 12 Inch Color: White Size: Queen(New)
Review Image by Kaden Wilson Kaden Wilson
I can confidently say that it has completely changed my sleeping experience! It has no unpleasant smell when opened. The springs don't make any noise and provide good support! It functions perfectly and I can highly recommend it! I was able to handle it myself without any problems, which made the installation process a breeze. I am very impressed with the quality of the mattress. It has not faded and the price of the mattress was also good. The firmness is just right. It doesn't sag and both my husband and I like it! A good night's sleep is important and fortunately, this bed is good for us. Out of 10. ... show more
Reviewed in the United States on December 10, 2024 by Kaden Wilson Kaden Wilson
    • Highly recommended
Style: 12 Inch Color: White Size: Queen(small box)
Review Image by Omid Samimi Omid Samimi
Review Image by Omid Samimi Omid Samimi
I recently purchased the Queen 12-inch mattress, and it has been a complete game changer for my sleep quality. The medium-firm feel strikes the perfect balance between support and comfort – it cradles my body without sinking too much, which has helped reduce my back and joint pain. The 12-inch thickness feels luxurious, and the top layer is soft and breathable, keeping me cool throughout the night. The mattress also excels in motion isolation – no more waking up when my partner moves! It arrived well-packaged and expanded fully within a few hours. For the price, this mattress is an unbeatable value. I’ve had it for a few weeks now, and every night feels like sleeping in a premium hotel bed. If you’re looking for a high-quality, affordable upgrade to your sleep setup, I couldn’t recommend this mattress more! ... show more
Reviewed in the United States on December 18, 2024 by Omid Samimi Omid Samimi
    • A Dreamy Sleep Experience with Sweetnight Memory Foam Mattress
Style: 12 Inch Color: White Size: Queen(small box)
Review Image by Ishneet Singh Arora Ishneet Singh Arora
Review Image by Ishneet Singh Arora Ishneet Singh Arora
I recently purchased the Sweetnight Memory Foam Mattress, and it has been a total game-changer for my sleep quality. The memory foam provides incredible support while perfectly contouring to my body, offering just the right amount of firmness and comfort. Since I started using this mattress, I’ve noticed a significant improvement in my back and neck pain. It also does an excellent job of minimizing motion transfer—perfect for light sleepers or anyone sharing a bed. The materials feel premium and durable, giving me confidence that this mattress will last for years. Overall, the Sweetnight Memory Foam Mattress is a fantastic investment in better sleep. I highly recommend it to anyone looking to upgrade their mattress—affordable, high-quality, and life-changing! ... show more
Reviewed in the United States on December 19, 2024 by Ishneet Singh Arora Ishneet Singh Arora
    • Might as well sleep on the bed slats.
Style: 12 Inch Color: White Size: King(New)
This “plush” mattress is quite possibly the most uncomfortable and worst purchase I’ve ever made on amazon. It’s been a week and it still hasn’t taken its complete shape and when I lay or sit on it (5’11” 184lbs male) my body sinks to the bed slats below. The return process is an absolute nightmare, I have to wait 2 weeks and wrap it in a box or in plastic for it to be picked up by Amazon and then who knows when I’ll get my refund. It’s not durable, it should be 10” or 12” thick but it never made it there. The edges have no support. I simply hate it. ... show more
Reviewed in the United States on January 6, 2025 by chase g.
    • Comfortable, just the right amount of firm
Style: 12 Inch Color: White Size: Queen(small box)
Review Image by Sanjeet Tiwari Sanjeet Tiwari
Review Image by Sanjeet Tiwari Sanjeet Tiwari
Review Image by Sanjeet Tiwari Sanjeet Tiwari
Review Image by Sanjeet Tiwari Sanjeet Tiwari
Review Image by Sanjeet Tiwari Sanjeet Tiwari
I left the mattress for about 50 hours and it expanded to almost it's full capacity. I purchased a 12 inch and it went to about 11.5 inches. I usually like mattresses that are not too firm, and this was medium firm, so matches my choice! Great for solo sleepers. It was very easy to assemble, I purchased queen small box, it was a bit heavy though. Overall, comfortable and good for the cost! ... show more
Reviewed in the United States on November 29, 2024 by Sanjeet Tiwari Sanjeet Tiwari
    • Comfortable, good for back and neck pain
Style: 12 Inch Color: White Size: Queen(small box)
Easy to assemble but bulky so need help getting out of packaging. It took about four days to fully expand. But I did have to sleep on it same day as removal due to space limitation. I have chronic back pain, spinal stenosis and sciatica and this bed has made it less painful in the mornings. Excellent value for the price. Still getting used to the memory foam vs pillow top mattress. I get warm in it, but I am warm natured anyway. Definitely a great choice. It is medium firm. Love it so far!! ... show more
Reviewed in the United States on December 3, 2024 by blueblazers original
    • So far my absolute favorite foam mattress
Style: 12 Inch Color: White Size: King(New)
Review Image by Dario Dario
I've tried a Sweetnight mattress before but it was way too firm for us.This is two in one! It stays pretty cool and the pattern is very nice but if your sheets are white it does kinda come through, obviously a higher thread count would help that. But honestly I sleep great and the aches and pains are lessened with the comfort and support it offers. Plus the price is just fantastic ... show more
Reviewed in the United States on December 27, 2024 by Dario Dario
    • I’m 5’11” 200lbs and Well..?
Style: 10 Inch Color: White Size: Full
So the mattress did expand to its correct height, but it is Extremely Soft for my size. I’m 5’11” 200lbs and when sitting on the mattress I feel my bed frame, when laying down my tail bone and lower back are on the bed frame causing me pain every day when I wake up, and don’t even think about 2 people on the mattress unless the weight is less then 200lbs combined. But!? I did Flip the mattress over so instead of the soft foam being on top it is on the bottom and the harder foam is on the top and the mattress is 1000% better. I don’t touch the bed frame at all no longer have a pain and 2 Adults comfortable can sleep together. Conclusion: Would I buy it again? No id try a different, but if you want a mattress when flipped feels completely different or weigh less then sure it’s good quality so go for it. ... show more
Reviewed in the United States on November 26, 2024 by JoshuaLeonard13

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