Serta Five Star Tranquility 10-Inch Plush Pillow Top Twin - Cooling

In this review of the Serta Five Star Tranquility 10-Inch Plush Pillow Top mattress the bottom line is clear: it is a strong pick for side sleepers and anyone who wants a cloud-like, pressure-relieving surface without spending a premium. The mattress delivers a genuine plush pillow top feel with gel-infused layers and targeted lumbar support, which combine to improve comfort and reduce pressure around hips and shoulders. Setup is straightforward since it is a mattress-in-a-box, and the included 100 night trial and 10-year limited warranty make it an easy risk-managed choice.

Key Features

• Plush pillow top feel: A soft cushioning top layer gently contours to side sleepers and those who prefer a cloud-like surface for reduced shoulder pressure.
• 3-zone lumbar support: Zoned foam provides targeted support for the lower back and hips, helping keep the spine aligned while relieving localized pressure.
• Pressure-relieving foam: PillowSoft Aire Foam and QuiltLoft Memory Foam cushion pressure points for improved comfort during side and back sleeping positions.
• Cooling gel foam: Cool Twist Gel Foam helps move heat away from the body and increases breathability for a cooler night's sleep.
• Mattress-in-a-box convenience: Delivered compressed and rolled, the mattress is easy to unbox and set up in minutes and is made in the USA with global components.
• CertiPUR-US certified foams: All foams are certified for low emissions and performance, giving added peace of mind about materials.

Who It's For

The Tranquility 10-Inch Plush is best for side sleepers and combination sleepers who prefer a softer, cushioning surface that reduces shoulder and hip pressure. It also suits shoppers seeking a value mattress-in-a-box with a cooling gel layer and zoned lumbar support for lower back comfort.

Shoppers who need a very firm support core, a very thick luxury pillow top, or precise split-firmness options may want to look elsewhere, as this model emphasizes plush comfort and moderate support rather than ultra-firm or highly customizable firmness choices.

Pros & Cons

Pros

• Comfortable plush feel that cradles pressure points for side sleepers.
• Targeted 3-zone lumbar support helps maintain lower back alignment.
• Cooling gel and breathable foams reduce heat retention for cooler sleep.
• Easy mattress-in-a-box setup plus a 100 night trial and 10-year limited warranty.

Cons

• Some customers reported mixed feedback on size and thickness, so measurements should be checked against sheets and bed frames.
• The plush profile may not provide enough firm support for heavier sleepers who need a very firm surface.

Specifications

Brand	Serta Five Star
Model	Tranquility 10-Inch Plush Pillow Top
Comfort level	Plush pillow top
Key materials	Cool Twist Gel Foam, PillowSoft Aire Foam, QuiltLoft Memory Foam, supportive coil system
Trial & warranty	100 Night Trial, 10-year Limited Warranty
Delivery	Mattress-in-a-box, made in USA with global components

Our Verdict

The Serta Five Star Tranquility 10-Inch Plush Pillow Top is a solid value for side sleepers and anyone wanting a soft, pressure-relieving surface with cooling features and zoned lumbar support. With easy setup, CertiPUR-US foams, and a risk-reducing trial and warranty, it offers strong comfort and quality for the price, though shoppers needing firmer support should consider alternatives.

Frequently Asked Questions

Is this mattress good for side sleepers?
Yes, the plush pillow top and pressure-relieving foams are specifically suited to side sleepers by cushioning shoulders and hips.

Does the mattress sleep cool?
Cooling Cool Twist Gel Foam and breathable comfort layers help dissipate heat and improve airflow compared with traditional all-foam models.

How long is the warranty and trial?
The mattress includes a 100 night trial and a 10-year limited warranty for added peace of mind.