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The Sealy Back Support Harmony is a discontinued Australian-market Queen spring mattress that CHOICE describes as firm. CHOICE’s accessible page lists its specifications, but its rating and test results are available only to members. The page’s prices are historical, not a current offer, and no verified replacement model or current stock is established.
What mattress did CHOICE review?
CHOICE identifies the Back Support Harmony as an in-store Queen spring mattress with a claimed firm feel. Its listed dimensions are 204 × 153 × 24 cm. The page records a weight of 38 kg, eight layers, 204 springs per square metre, and a core type described as “Light spring.” These are product specifications, not measures of how well the mattress performs.
CHOICE labels availability “Discontinued model.” Its page lists A$1,099 and a price paid of A$999 after sale or bargaining, but those are historical figures shown on that page—not a current quote or evidence that the mattress is still for sale. See CHOICE’s Back Support Harmony listing.
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What does the review say about performance?
The accessible CHOICE page names test categories including support when new, support for larger and petite sleepers, support over time, stability, sagging resistance, breathability, resistance to wear, and warmth or coolness. It does not expose the results or the Expert Rating to non-members. That means the public information does not establish whether this mattress performed well or poorly in any of those tests.
#1 Best Overall
- 2” SEALYCOMFORT GEL MEMORY FOAM: This cushioning gel memory foam layer conforms to the shape of your body, providing tailored pressure relief and support where you need it most
- 2.25” SEALYSUPPORT TRANSITION FOAM: This additional layer of high-density foam enhances the overall comfort of the queen mattress in a box by offering extra support and durability
- 7” SEALYRESPONSIVE ENCASED COILS: Featuring individually encased coils, this 12 inch queen mattress provides targeted support across the entire surface, allowing for independent movement and reduced motion transfer
- CERTIPUR-US CERTIFIED: The Sealy Dreamlife mattress foam meets the strict standards set by CertiPUR-US, ensuring it is made without certain harmful chemicals including formaldehyde, ozone depleters, phthalates regulated by the U.S. Consumer Product Safety Commission, or mercury, lead or other heavy metals.
- SURFACE-GUARD TECHNOLOGY: Built-in antimicrobial protection with Surface-Guard Technology helps prevent the growth of bacteria and the buildup of allergens on the mattress surface
The accessible listing also does not provide the underlying physical test date or the full test method. No model-specific outcome statistic is available there, so the specification figures should not be mistaken for independent performance results.
Is a similarly named Harmony mattress the same model?
No equivalence is established. Sealy Singapore lists PostureSense Harmony Deluxe in cushion-firm at approximately 30 cm thick and Harmony Ultra in medium at approximately 34 cm thick. Those are market-specific products, and their names do not show that either is the Australian Back Support Harmony or its successor. See Sealy Singapore’s PostureSense listings.
Rank #2
- 2.5” SEALYCOMFORT GEL MEMORY FOAM: This cushioning gel memory foam layer conforms to the shape of your body, providing tailored pressure relief and support where you need it most
- 2.5” SEALYSUPPORT TRANSITION FOAM: This additional layer of high-density foam enhances the overall comfort of the queen size mattress by offering extra support and durability
- CERTIPUR-US CERTIFIED: The Sealy Dreamlife mattress foam meets the strict standards set by CertiPUR-US, ensuring it is made without certain harmful chemicals including formaldehyde, ozone depleters, phthalates regulated by the U.S. Consumer Product Safety Commission, or mercury, lead or other heavy metals.
- SURFACE-GUARD TECHNOLOGY: Built-in antimicrobial protection with Surface-Guard Technology helps prevent the growth of bacteria and the buildup of allergens on the mattress surface
- 10-YEAR LIMITED WARRANTY: Rest assured with reliable comfort, this queen memory foam mattress is backed by Sealy’s rigorous product testing for exceptional quality and long-lasting durability
ProductReview.com.au also has a listing for a separately named Sealy Harmony Deluxe Mattress, marked discontinued. Reviews for that model should not be treated as evidence about the Back Support Harmony. See the separate Harmony Deluxe listing.
What to check if you are looking for one or a replacement
Current remaining stock and an official successor for the Back Support Harmony have not been verified. If you find a listing or are comparing alternatives, confirm the exact model and market rather than relying on “Harmony” in the name. Compare the specific mattress’s size and dimensions, comfort feel, construction, published independent test results, trial and return terms, delivery conditions, and warranty with the seller in your region. Do not assume terms for another Sealy product or country apply to this discontinued model.
Quick Recap
Best Value
- 2” SEALYCOMFORT GEL MEMORY FOAM: This cushioning gel memory foam layer conforms to the shape of your body, providing tailored pressure relief and support where you need it most
- 2.25” SEALYSUPPORT TRANSITION FOAM: This additional layer of high-density foam enhances the overall comfort of the king hybrid mattress by offering extra support and durability
- 7” SEALYRESPONSIVE ENCASED COILS: Featuring individually encased coils, this king memory foam mattress provides targeted support across the entire surface, allowing for independent movement and reduced motion transfer
- CERTIPUR-US CERTIFIED: The Sealy Dreamlife mattress foam meets the strict standards set by CertiPUR-US, ensuring it is made without certain harmful chemicals including formaldehyde, ozone depleters, phthalates regulated by the U.S. Consumer Product Safety Commission, or mercury, lead or other heavy metals.
- SURFACE-GUARD TECHNOLOGY: Built-in antimicrobial protection with Surface-Guard Technology helps prevent the growth of bacteria and the buildup of allergens on the mattress surface
Rank #4
- 3” SEALYCOMFORT GEL MEMORY FOAM: This cushioning gel memory foam layer conforms to the shape of your body, providing tailored pressure relief and support where you need it most
- 3.25” SEALYSUPPORT TRANSITION FOAM: This additional layer of high-density foam enhances the overall comfort of the king size mattress by offering extra support and durability
- 7” SEALYRESPONSIVE ENCASED COILS: Featuring individually encased coils, this king memory foam mattress provides targeted support across the entire surface, allowing for independent movement and reduced motion transfer
- SEALYCOOL STRETCH KNIT COVER: Soft and stretchable, this knit cover enhances airflow and helps regulate temperature, keeping you cool and comfortable throughout the night
Rank #3
- 1” SEALYCOMFORT GEL MEMORY FOAM: This cushioning gel memory foam layer conforms to the shape of your body, providing tailored pressure relief and support where you need it most
- BREATHABLE COMFORT: Advanced foam technology promotes airflow, offering an ideal balance of comfort and support while maintaining a cool, breathable sleep environment
- CERTIPUR-US CERTIFIED: The Sealy Dreamlife mattress foam meets the strict standards set by CertiPUR-US, ensuring it is made without certain harmful chemicals including formaldehyde, ozone depleters, phthalates regulated by the U.S. Consumer Product Safety Commission, or mercury, lead or other heavy metals.
- SURFACE-GUARD TECHNOLOGY: Built-in antimicrobial protection with Surface-Guard Technology helps prevent the growth of bacteria and the buildup of allergens on the mattress surface
- 10-YEAR LIMITED WARRANTY: Rest assured with reliable comfort, this queen memory foam mattress is backed by Sealy’s rigorous product testing for exceptional quality and long-lasting durability
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
