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Serta

Serta Five Star Mattress Tranquility 10-Inch Medium – Twin– Zoned Lumbar Support, Pressure Relief, Cooling Foam – Bed-in-a-Box– 100 Night Trial, 10-Year Limited Warranty

  • Based on 93 reviews
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Mar 23 – Mar 24
Order within 8 hours and 23 minutes
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Style: Level 3 Medium 10"


Size: Twin


Features

  • MEDIUM-FIRM COMFORT: A balanced feel that supports proper alignmentideal for combination sleepers and those who prefer not-too-soft, not-too-firm.
  • ZONED LUMBAR SUPPORT FOAM: 3-Zone Support Foam targets the lower back and hips for pressure relief and alignment.
  • CUSHIONED PRESSURE RELIEF: Serta PillowSoft Aire and PillowSoft Foams provide contouring comfort around shoulders, hips, and knees. BREATHABLE COOLING DESIGN: Airflow-enhancing cover fabric and breathable foams promote a cooler sleep environment.
  • 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

Experience balanced comfort with the Serta Five Star Mattress Tranquility 10” Medium Mattress, designed with a medium-firm feel that adapts to all sleep styles. A gel-infused lumbar band targets the lower back, while pressure- relieving foams cushion high-impact areas for all-night ease. Stay cool with a breathable mattress cover and enjoy peace of mind knowing all foams are CertiPUR-US certified. Perfect for any bedroom, this mattress-in-a-box is easy to install and built for long-lasting comfort. 100 Night Trial, 10-Year Limited Warranty

Brand: Serta


Size: Twin


Product Dimensions: 74.5"L x 38"W x 10"Th


Top Style: Tight Top


Number of Layers: 5


Fill Material: Memory Foam


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


Color: White


Coil Type: Continuous Coil


Model Name: Serta Five Star Mattress Tranquility 10” Medium Bed in a Box


Product Dimensions: 74.5 x 38 x 10 inches


Item Weight: 51 pounds


Manufacturer: Serta Simmons Bedding, LLC.


Item model number: 50


Refill: Memory Foam


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.


Assembly required: No


Batteries required: No


Included Components: Mattress


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Mar 23 – Mar 24

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.

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Top Amazon Reviews

    • Amazing mattress!
Style: Level 3 Plush 10" Size: Queen
This mattress is amazing. You can trust serta. Previous to this one I had a serta perfect sleeper mattress which was used for over 10 years. It became too soft but it lasted a long time. Now this one gives me the support my back needs. I was worried the plush mattress would be too soft and not offer support but it is perfect. If you lay flat on it it gives great support and is not hard. I sleep great now. If you want a mattress that isn't too firm but offers support, this is a great choice. It does have a light smell, just like any new mattress would, but once you put sheets on it you can't smell it. And I'm sure the smell eventually goes away. ... show more
Reviewed in the United States on September 10, 2025 by Amazon Customer
    • Comfortable but thickness isn’t correct.
Style: Level 3 Plush 10" Size: Queen
Very comfortable especially considering it comes in a box. One of the best I have owned. However it is definitely not 10 inches, I’m not even sure it is fully 8 inches. Don’t like paying for a 10 inch when is isn’t but overall very satisfied.
Reviewed in the United States on August 26, 2025 by HLD
    • Nice, but possible size issues.
Style: Level 2 Medium 8" Size: Twin
Review Image by Lynn Lopez Lynn Lopez
Review Image by Lynn Lopez Lynn Lopez
First impressions, we opened this mattress about an hour ago. It seems well made. We typically like and seek to buy Serta. It did start expanding immediately after opening. So far, after about an hour, it has expanded to about 5.5" (we purchased an 8"). I believe it will fluff a bit more, but not sure if it'll make the full 8". Here's the real downer though; a twin mattress is supposed to be around 75" in length. This mattress measures at about 71.5" leaving quite a lot of gap at the top and bottom. I do not believe that the length is going to fill out. This is very disappointing in regard to the overall fit. I checked the twin xl and the price is around $100 more (supposed to be 80"). The conundrum is, would a Serta twin xl be less than the stated length and therefore fit, or will it be true to size, and be too long? ... show more
Reviewed in the United States on August 5, 2025 by Lynn Lopez Lynn Lopez
    • Good quality, good sleep
Style: Level 3 Medium 10" Size: Queen
It was still a little more firm than I expected but a foam topper solved that and it's very comfortable
Reviewed in the United States on August 5, 2025 by Amazon Customer
    • Not worth it
Style: Level 3 Firm 12" Size: California King
We set the mattress up according to instructions. It was smaller than advertised, about 2 inches narrower. It did not expand to 12 inches, it is closer to 8 inches. Even after weeks, it has a huge hump in the middle. Returning it for something different.
Reviewed in the United States on August 16, 2025 by Beau L
    • I had a great nap on the new mattress. I'm very satisfied with this mattress.
Style: Level 2 Medium 8" Size: Twin
This new mattress fits very well on our new daybed. I have used it several times and had a great nap. I feel it is awesome for the money. And the firmness was just right. I am very satisfied with this mattress. We will be getting another mattress for the trundle.
Reviewed in the United States on September 13, 2025 by Jacquie Thomas
    • Wrong Size of Mattress
Style: Level 2 Medium 8" Size: Twin XL
The mattress is quite comfortable, was delivered quickly, and easy to assemble. However, it is not the size of a Twin XL. I assume it is only a standard twin, but there are no tags with the size attached. I do not believe it is the mattress that I ordered.
Reviewed in the United States on August 30, 2025 by Luke Steiner
    • Amazing!
Style: Level 2 Medium 8" Size: Twin
Very impressed with this mattress! Here i spent near a thousand for my mattress and ny little one's twin mattress that was a fraction of the price ... Is wayyyy more comfortable 🫠
Reviewed in the United States on August 10, 2025 by joann t.

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