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Serta Five Star Mattress Tranquility 12-Inch Firm– Queen– Zoned Support, Pressure Relief, Cooling– Bed-in-a-Box – Ideal for Back & Stomach Sleepers – 100 Night Trial, 10-Year Limited Warranty

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, May 21
Order within 8 hours and 4 minutes
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Style: Level 3 Firm 12"


Size: Queen


Features

  • FIRM MATTRESS FOR BACK & STOMACH SLEEPERS: Designed for a supportive, firm feel that helps promote proper spinal alignment and reduces sinkage for a refreshing night's sleep.
  • 3-ZONE TARGETED SUPPORT: Zoned foam targets lumbar and lower back areas for enhanced support and pressure relief.
  • PRESSURE RELIEF FOAM COMFORT: Layers of PillowSoft Aire Foam and QuiltLoft Memory Foam cushion pressure points such as shoulders, hips, and knees. COOLING & BREATHABLE MATTRESS: Breathable fabrics and foams help keep you cool and fresh all night.
  • DURABLE SUPPORT FOR UNDISTURBED SLEEP: Durable coils reduce partner disturbance-provide lasting support across the mattress. BUILT TO LAST CERTIPUR-US CERTIFIED: Sleep soundly - CertiPur-US certified and backed by a 10-year limited warranty.
  • EASY SETUP MATTRESS-IN-A-BOX MADE IN USA: Delivered in a box and made in the USA with global components. Setup takes minutesjust Unbox, Unroll, Unwind.

Description

Sleep better with the Five Star Mattress Tranquility 12-Inch Firm Mattress, designed for cooling comfort, targeted support, and long-lasting durability. This firm mattress is ideal for back and stomach sleepers, providing a stable sleep surface that promotes spinal alignment and helps reduce pressure on shoulders, hips, and knees. The 3-Zone Support System focuses on lumbar support for healthy posture, while advanced memory foam layers offer cushioned comfort and pressure relief. Stay cool with a breathable, airflow-enhancing mattress cover, and enjoy peace of mind knowing all foams are CertiPUR-US certified. Perfect for primary bedrooms, guest rooms, or kids’ rooms, this mattress-in-a-box delivers premium quality at an affordable price, expanding quickly for immediate comfort. 100 Night Trial, 10-Year Limited Warranty

Brand: Serta


Size: Queen


Product Dimensions: 79.5"L x 60"W x 12"Th


Item Firmness Description: Firm


Top Style: Tight Top


Cover Material: Polyester Blend


Number of Layers: 7


Fill Material: Memory Foam


Special Feature: Breathable, Durable, Low Motion Transfer, Pressure Relief, Temperature Regulating


Color: White


Item Firmness Description: Firm


Number of Layers: 7


Additional Features: Breathable, Durable, Low Motion Transfer, Pressure Relief, Temperature Regulating


Mattress Coil Type: Pocketed Coil


Construction Type: Innerspring


Number of Mattress Coils: 400


Is Customizable?: No


Portable: No


Size: Queen


Item Dimensions L x W x Thickness: 79.5"L x 60"W x 12"Th


Item Depth: 12 inches


Item Dimensions: 79.5 x 60 x 12 inches


top-style: Tight Top


Color: White


Style Name: Level 3 Firm 12"


Brand Name: Serta


Model Name: Serta Five Star Mattress Tranquility 12” Firm Bed in a Box


Product Benefits: Back Pain Relief, Improves Sleep, Pressure Relief, Reduces Toss & Turn, Stress Relief


Model Number: 50


UPC: 198167037752


Manufacturer: Serta Simmons Bedding, LLC.


Item Type Name: Bed Mattress Conventional


Included Components: Mattress


Cover Material: Polyester Blend


Fill Material: Memory Foam


Product Care Instructions: In order to protect your mattress from stains and spills, we recommend using a mattress protector. This will also help with the overall health and lifespan of your mattress., To clean your mattress, we suggest applying baking soda to the soiled area and letting it stand for about 15 minutes. Then, vacuum and repeat as needed. It's important that you also air the product out as much as possible., We do not recommend applying liquids to the product. Applying liquids may stain the fabric and could potentially make the soiled area worse. Moisture or chemicals applied directly to the mattress can cause premature breakdown of the foam and damage the product.


Mattress Comfort Layer Material: Comfort Foam, Memory foam


Material Type: Memory Foam, Wrapped Coils


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 21

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.

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Top Amazon Reviews


  • Perfect fit love it.
Style: Level 3 Firm 12" Size: Twin XL
If you want a firm mattress this is the one for you, I love it, it relieves my back and body, very confronting.
Reviewed in the United States on February 26, 2026 by Amazon Customer

  • Best mattress I've owned in 30 years!
Style: Level 3 Firm 12" Size: Twin XL
The mattress feels like sleeping on a cloud, yet it's firm. Cool at night and retains its shape when you sit on the side of the bed. No back pain!
Reviewed in the United States on March 8, 2026 by Tubalcane

  • Highly recommended by thius satisfied customer.
Style: Level 3 Firm 12" Size: California King
I would have never believed that when I received my mattress that I would be able to sleep on it the same night. I can faithfully say it is amazing great night sleep and not awaken by pressure point. Totally satisfied. Other than the weight, it was easy to set up with help. Money well spent, comfortable. and no new smell at all. ... show more
Reviewed in the United States on February 11, 2026 by Linda c

  • Inferior product
Style: Level 3 Firm 12" Size: Full
This mattress is lumpy, has bulges and loose globs on the surface. Serta refused to honor the warranty. Horrible experience with what I used to think was a reputable brand.
Reviewed in the United States on March 17, 2026 by CL

  • Colchon de Una calidad excelente
Style: Level 3 Firm 12" Size: Twin
Tremendo colchon. Un material sumamente bueno y muy como do para descansar. Lo volveria a comprar. Lo recomiendo al 100%
Reviewed in the United States on April 1, 2026 by Yomari

  • Order not exactly correct. Discount in price should be considered
Style: Level 3 Firm 12" Size: Queen
We opened up the mattress 4 days before doing the set up. When we placed mattress on the frame we noticed it did not seem big enough. I ordered a 12 “ mattress- well it measures 9.6 “. The box label states 12” but that was not was inside. I should get a discount on the price of what I need to pay. Please respond ... show more
Reviewed in the United States on July 21, 2025 by Donna Bell

  • Corchon serta
Style: Level 3 Firm 12" Size: Queen
El corchon mas bueno y cómodo que he tenido suave y cómodo lo recomiendo
Reviewed in the United States on April 3, 2026 by Ania

  • Not as firm as I hoped
Style: Level 3 Firm 12" Size: Twin
This mattress is not very soft, but I expected it to be much firmer. When I lie on it, I feel more sinking than I wanted. I would have preferred a mattress that stays truly firm and supportive.
Reviewed in the United States on September 14, 2025 by Placeholder

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