Sleepmax Firm King Mattress 14 Inch - Deep Sleep Hybrid Mattress Pain Relief - No Sagging Bed in a Box for Back & Side Sleepers - Extra Support, Fiberglass-Free, CertiPUR-US Certified, 365-Night Trial
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Returnable until Jan 31, 2026
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.
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Availability:
In Stock.
Arrives
Jun 9 – Jun 10
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Size: King
Style: 14'' Ultra
Features
- PAIN RELIEF & MOTION ISOLATION Combining the supportive benefits of coils with the softness of premium foam, Sleepmax Mist helps align the spine, evenly distributes body weight, and relieves pressure points for deep, restorative sleep. Individually wrapped springs isolate motion and minimize noise, ideal for light sleepers.
- BALANCE OF COMFORT & SUPPORT With a deluxe Euro top, pressure-relieving foam layers, and a durable base reinforced with pocketed coils, Sleepmax Mist delivers a just right feel that suits back, side, and combination sleepers alike, offering both softness and stability.
- NON-TOXIC MATERIALS & SKIN-FRIENDLY Sleepmax Mist is crafted using CertiPUR-US and OEKO-TEX Standard 100 certified materials, free from fiberglass and harmful substances. It complies with CFR1633 fire safety regulations, offering a clean, hypoallergenic surface thats gentle on skin.
- ENHANCED SAFETY & EXTENDED LIFESPAN Built with sturdy edge support to prevent sagging and improve structure, Sleepmax Mist enhances safety by reducing the chance of roll-off during sleep. Reinforced edges also protect internal layers, contributing to longer-lasting performance.
- ABOUT SLEEPMAX With over 40 years of sleep innovation, Sleepmax includes a lifetime service agreement with every mattress-in-a-box purchase, reflecting our commitment to reliable quality and long-term customer care.
Brand: Sleepmax
Size: King
Product Dimensions: 80"L x 76"W x 14"Th
Top Style: Euro Top
Cover Material: Cotton
Number of Layers: 7
Fill Material: Memory Foam
Special Feature: Extra Lumbar & Hip Support, Motion-Isolation, Pain Relief, Temperature Regulation
Color: Grey
Coil Type: Pocketed Coil
Product Dimensions: 80 x 76 x 14 inches
Item Weight: 134 pounds
Manufacturer: Sleepmax Direct
Item model number: Sleepmax Mist
Date First Available: September 3, 2025
Age Range Description: Adult
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jun 9 – Jun 10
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Size: Queen
Style: 14'' Ultra
It arrived sooner than expected. After cutting open its vacuum-sealed packaging the mattress decompression started immediately & reached full dimension within a few minutes. I slept on it the 1st night-no waiting 2-3 days as I’ve read that some other brands require. It is a firm (as I ordered) & very comfortable mattress. It has no scent. I’m no longer tossing & turning side to side throughout the night, & I’m getting a great night’s sleep. When I replace a bed in another room I will definitely buy another SleepMax.
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Reviewed in the United States on October 18, 2025 by Kathy M
Size: Full
Style: 12'' Luxe
Very firm and comfortable. Well worth the money
Reviewed in the United States on October 9, 2025 by DL
Size: King
Style: 10'' Premier
Love, love, love. The best purchase that I have made in a long time. I was having hip and side aches couldn't sleep at night, now the mattress that we had was about 10 years old. Long story short it is amazing. The first couple nights we had to get use to it,now can sleep and no pain. Well worth the purchase!!!
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Reviewed in the United States on October 2, 2025 by Kelly Diekemper
Size: Queen
Style: 14'' Ultra
This was a huge upgrade from my last all foam mattress! I can feel the springiness of the coils and the softness of the foam simultaneously, and although it's only been two nights of sleep so far, they've been noticeably better in my overall quality of sleep. My last mattress was too soft, and developed clear impressions from use despite rotating the mattress often. This resulted in super uncomfortable sleep. This mattress seems to be the perfect balance of firmness and softness that I was looking for, and I don't foresee any indentations forming anytime soon. 2 week update: I’M VERY PLEASED. This was an excellent decision and I’m super happy with my new mattress. The quality is top tier.
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Reviewed in the United States on September 30, 2025 by Random Consumer
Very comfortable mattress. Good quality. Would order again.
Reviewed in the United States on October 2, 2025 by Carolyn
Size: King
Style: 14'' Ultra
I was hesitant at first to purchase it, but got it anyways. It’s worth it. It’s firm but comfortable. No more back pains. 5 stars!
Reviewed in the United States on October 15, 2025 by Norman Norman
Size: Full
Style: 12'' Luxe
Nice and FIRM
Reviewed in the United States on October 1, 2025 by brian
Size: Queen
Style: 14'' Ultra
I’m sleeping less hours now but I feel much more rested when I wake up.
Reviewed in the United States on October 15, 2025 by JDB