Is the Dyonery mattress good for back pain?

It is built as a medium-firm foam bed for back-pain relief, and owners with mild back discomfort generally report even support. Severe back issues are better discussed with a doctor before choosing any mattress.

Does it need a box spring?

No. It works on a platform bed, slatted frame, or adjustable base. A box spring is optional and mainly raises the bed height.

How long does it take to expand?

Most owners say it reaches full shape within 24 hours after unboxing. Sleeping on it sooner is possible, but the feel settles after the first day.

Is the cover really fiberglass-free?

Yes. The removable cover is made without fiberglass, which matters because fiberglass in mattress covers can shed onto bedding and floors.

What sizes are available?

Twin, Twin XL, Full, Queen, King, and California King. Twin XL suits dorm and adjustable bases; California King suits taller sleepers.

Does it work on an adjustable base?

Yes. The all-foam construction bends with an adjustable base. It is not compatible with a rigid innerspring foundation.

Where is the Dyonery Memory Foam Mattress cheapest?

At Target, for $206.00, as of our latest check.

Dyonery Memory Foam Mattress

Best price now

$206.00at TargetChecked 6 h ago

Prices are checked against each store and labelled with when.

Visit Target

Dyonery Memory Foam Mattress

Best price now

$206.00at TargetChecked 6 h ago

Prices are checked against each store and labelled with when.

Visit Target

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Price facts

Lowest price today: $206.00 at Target (checked Nov 11, 2026).

Our take on the Dyonery Memory Foam Mattress

The Dyonery is a 10-inch memory foam mattress sold in six sizes from Twin to California King. It uses a medium-firm foam build aimed at back-pain relief, and the cover is removable and made without fiberglass. The foam is CertiPUR-US certified, meaning low emissions and no heavy metals or certain flame retardants. It is a budget-minded all-foam bed that competes with other 10-inch memory foam mattresses on simplicity rather than features: no coils, no zoned support, no adjustable-firmness layers. It suits shoppers who want a plain foam mattress at a low entry point and sleep mostly on their back or stomach.

Best forBack and stomach sleepers who want medium-firm supportShoppers furnishing a guest room or first apartmentBudget buyers who want a simple all-foam bedPeople who prefer a fiberglass-free cover

Pros

Medium-firm feel gives even support without a deep sink
10-inch profile fits standard sheets and most bed frames
Removable cover is fiberglass-free and washable
CertiPUR-US certified foam with low emissions
Available in six sizes, including Twin XL and California King

Cons

All-foam build has no coils, so edge support is soft
Memory foam sleeps warm for hot sleepers
Thin 10-inch profile limits cushioning for heavy sleepers
No zoned or adjustable firmness; one feel for everyone
Motion transfer is good but bounce and responsiveness are low

Dyonery Memory Foam Mattress prices at every store

TargetNew
In stock
$206.00Checked 6 h ago
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Dyonery Memory Foam Mattress price history

Lowest price we've seen: $206.00 on Nov 11 at Target. Tracked across 1 store since Nov 11.

What reviewers say

What people mention

FirmnessMixedSome owners find the medium-firm feel right for back support, while heavier sleepers say it softens more than expected.
Sleep temperatureCriticisedMemory foam retains heat, and several owners say it sleeps warm without a cooling topper.
Edge supportCriticisedThe foam compresses noticeably at the edges, so sitting on the side feels unstable.
SetupPraisedOwners report the mattress expands to full shape within about a day of unboxing.
CoverPraisedThe removable, fiberglass-free cover is easy to unzip and wash.

From Target

10 inch memory foam mattress
Medium firm support
Designed for back pain relief
Removable fiberglass-free cover
CertiPUR-US certified

Sizes: Short Queen

About the Dyonery Memory Foam Mattress

The Dyonery Memory Foam Mattress is a 10-inch mattress with medium-firm support. It is designed for back pain relief.

The cover is removable and fiberglass-free. The mattress is CertiPUR-US certified.

Type: Memory foam mattress
Thickness: 10 inches
Firmness: Medium firm
Cover: Removable, fiberglass-free
Certification: CertiPUR-US certified
Sizes: Twin, Twin XL, Full, Queen, Short Queen, King, California King

Specifications

Size: Queen, Twin, King, Full, California King, Twin XL

Questions and answers

Is the Dyonery mattress good for back pain?: It is built as a medium-firm foam bed for back-pain relief, and owners with mild back discomfort generally report even support. Severe back issues are better discussed with a doctor before choosing any mattress.
Does it need a box spring?: No. It works on a platform bed, slatted frame, or adjustable base. A box spring is optional and mainly raises the bed height.
How long does it take to expand?: Most owners say it reaches full shape within 24 hours after unboxing. Sleeping on it sooner is possible, but the feel settles after the first day.
Is the cover really fiberglass-free?: Yes. The removable cover is made without fiberglass, which matters because fiberglass in mattress covers can shed onto bedding and floors.
What sizes are available?: Twin, Twin XL, Full, Queen, King, and California King. Twin XL suits dorm and adjustable bases; California King suits taller sleepers.
Does it work on an adjustable base?: Yes. The all-foam construction bends with an adjustable base. It is not compatible with a rigid innerspring foundation.
Where is the Dyonery Memory Foam Mattress cheapest?: At Target, for $206.00, as of our latest check.