The Sealy Memory Foam Mattress Review You Can Actually Trust (Conform Line Models Essentials, Performance, Premium, Optimum)

No commission • No endorsements • Based on owner experiences • Since 2008 • More

THE GOOD. Comes in several models and firmness levels to suit personal preference • above-average conforming ability • available in stores.

THE BAD. Durability / longevity no better than fair • questionable support • above-average heat trap potential • may be difficult to move on.

THE MATTRESS. Sealy's Conform Line of mattresses (priced $490-$2,900) consists of models Essentials, Performance, Premium, Optimum. They are 9.5-13.5 inches thick and usually consist of gel-infused memory foam over gel-infused support foam.

THE COMPETITION. Mostly Tempur-Pedic and Serta iComfort. See memory foam bed reviews – summary and side-by-side mattress comparison to learn how Sealy compares.


Sealy Memory Foam Mattress Ratings – Overview
Key Comparisons
Model Ratings & Comparison
Person Size and Sleep Position Suitability
Sealy Company Ratings

Ratings For Sealy Memory Foam Mattresses (Conform Line)

The ratings – based on 140+ consumer reviews gathered using an unbiased, accurate methodology – show how Sealy memory foam mattresses compare to the average mattress.

Owner satisfaction C+ Sealy memory foam mattresses have 76% owner satisfaction. More.
Durability / longevity D+ 18%+ of owners have reported sagging, support loss and or the development of body impressions occurring within three years. More.
Affordable c+ $490-$2,900 depending on model and size with the average queen costing about $1,300. More.
Support C Support may be inadequate for large people (230+ lbs) especially over the long term or for anyone seeking a highly supportive mattress.
Less (back) pain C+ Mattress sagging or loss of support can cause at least some discomfort and back pain, report about 15% of owners. (See mattresses and pain relief for general analysis.)
Minimizes pressure B+ The mattresses tend to conform and mold effectively to one's body, often resulting in well distributed support and pressure-point relief.
Easy to move on D+ The mattresses tend to give significant resistance to changing positions and getting up off the bed. They may not, therefore, be ideally suited for the elderly or those disabled, sick, weak.
Motion isolation a- Like memory foam mattresses in general, the Sealy mattresses are suitable for couples as they keep movement mostly isolated. One person can change positions, get into and out of bed without causing much if any disturbance to a partner.
Edge support C+ Can vary by model. The Premium models have dedicated edge support while the Essentials and Performance models may not. A mattress with dedicated edge support often allows a person to sit or sleep near the edge without sliding or rolling off.
No initial off gassing C- About 10% of owners report significant off gassing. Details.
No heat retention D+ About 11% of owners report sleeping hot. Details.
Sex friendly c- Memory foam mattress owners have mixed opinions on this issue. (See mattresses and sex for general analysis.)
No Noise a Like foam mattresses in general, Sealy memory foam mattresses make no noise when lied on or moved on.
No topper needed B- About 7% of owners need to add a topper to the mattress to improve softness and comfort.
Short break in C- Like many memory foam mattresses, break-in time can be considerable especially for firm models.
Easy to lift, handle, move C+ Weight is 40 to 130 lbs depending on model and size with the average queen weighing about 82 lbs. There are no handles.
Convenient try-out B- Sealy memory foam mattresses tend to have fairly wide availability in stores – as opposed to being available only online. This allows shoppers to briefly try the mattress before buying.

Analysis of Key Issues

Owner Satisfaction

Sealy memory foam mattresses have 76% owner satisfaction overall. This rate is lower than the rate for memory foam beds overall (80%) but higher than the rate for all beds overall (73%). The various Sealy models appear to rate similar to one another (76%).

sealy optimum comparison

Longevity / Durability

At least 18% of owners have reported sagging, support loss, and or the development of significant body impressions occurring within three years of ownership. This rate is higher than the rate for both the average mattress and the average memory foam mattress. Firmer Sealy memory foam mattress models may perform somewhat better than softer models on this issue.

optimum sagging chart
*within three years of ownership.


Sealy memory foam mattresses overall are somewhat lower priced than both the average mattress and those mattresses with generally similar specifications.

optimum price compare

Initial Odor / Off Gassing

Off gassing is a chemical-like or musty odor that new mattresses sometimes release. Sealy memory foam mattresses tend to off gas somewhat less often and less strongly than the average memory foam mattress. (See mattress off gassing for general analysis.)

OPTIMUM off gassing comparison chart

Sleeping Hot / Heat Retention

Despite extensive use of gel-infused foam, about 11% of Sealy memory foam owners report sleeping hot at least some of the time to an extent that undermines sleep quality / quantity. (See memory foam heat retention for general analysis.)

OPTIMUM heat comparison chart

Sealy Memory Foam Model Prices & Specifications

Prices are for a mattress only, not a foundation which is usually $100-$300. The ranges in price are due to the availability of various models within each line. Models in the higher end of a range are often thicker and / or have better material / design.

Essentials Performance Premium
Price Twin    
$490-$750 $880-$1530 $1630-$2330
Price Full    
$580-$830 $880-$1530 $1630-$2330
Price Queen    
$580-$830 $900-$1550 $1650-$2350
Price King    
$950-$1120 $1410-$2100 $2160-$2900
9.5-11.5" 10.5-12.5" 12.5-13.5"
Comfort Layer    
1.5-3.5" gel-infused memory foam
2.5-4" gel-infused memory foam

2" gel-infused foam (select models)
5" gel-infused memory foam

2" gel-infused foam (select models)
7.5" gel-infused support foam 7.5" gel-infused support foam 6-7" gel-infused support foam
medium to firm mostly medium to medium-firm mostly medium to firm
10 years non-prorated 10 years non-prorated 10 years non-prorated

Sealy Company Ratings

The ratings below – based on consumer experiences and the evaluation of Sleep Like The Dead – show how Sealy compares to the average mattress manufacturer.

Warranty coverage C Like other Sealy products, the warranty is 10 years total, non-prorated. (See mattress warranties: what you should know.)
Customer service C+ Sealy customer service overall is considered by consumers to be at least fair. Like most mattress companies, most complaints for Sealy customer service involve an inability to receive adequate help / compensation regarding sagging and warranty coverage.
Marketing accuracy B+ Sealy marketing claims and presentations are generally fact based and substantiated.
Specs disclosed C Sealy may provide thickness specifications for the various layers of its mattresses, but other details including the makeup of materials is limited. As a result, comparison shopping and making an informed buying decision can be impeded.
Time in business A Tempur-Pedic – in business since 1992 – purchased Sealy in 2012 and Sealy is now a subsidiary of Tempur Sealy International Inc. (The Sealy brand started in 1881.)
BBB rating A+ Sealy, like Serta and Simmons, currently has an A+ rating with the Better Business Bureau. Learn more about BBB ratings.
SLTD rating C+ SLTD (Sleep Like The Dead) company rating for Sealy is determined by averaging the above company ratings. This rating is better than that of Serta (C+) and Simmons (C).

Sleep Like The Dead's mattress research in The News –

About our unbiased Sealy Memory Foam Mattress review and research

Ratings are based on over 130 customer reviews of various Sealy memory foam mattresses (Conform Line), especially the discontinued Optimum model. Learn more about our mattress research methodology and why you can trust our mattress reviews.





To be a true consumer advocate, not a marketing tool of sleep product companies masquerading as one.

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