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Deal.ai › Sealy › Mattresses
Sealy
Sealy By Slumber Cushion Firm Mattress

Sealy By Slumber Cushion Firm Mattress

Best price now

$1,379.99at Mattress FirmObserved at 10:43 AM

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Our take on the Sealy By Slumber Cushion Firm Mattress

The Sealy By Slumber Cushion Firm is a firm foam mattress sold in Twin XL, a size built for dorm and adjustable-bed frames. Its cushion-firm feel targets back and stomach sleepers who want support without a rock-hard surface. Pricing is thin: the only new price listed is $1,379.99 at Mattress Firm as of November 7, 2026, with no other stores to compare against. That leaves little room to judge whether the price is a deal, so weigh it against Sealy's other firm foam models before buying.

Best forBack and stomach sleepers who want firm supportDorm and adjustable-bed setups that need Twin XLShoppers who prefer all-foam over innerspringsGuest rooms and smaller bedrooms
Pros
  • Firm foam surface suits back and stomach sleepers
  • Twin XL fits dorm beds and adjustable bases
  • All-foam build has no springs to squeak or sag
  • Sealy is a long-established mattress brand with broad service coverage
Cons
  • Only one new price listed, so no real price comparison
  • $1,379.99 is high for a Twin XL all-foam mattress
  • Firm foam can feel too hard for side sleepers
  • No soft or medium comfort option in this listing
  • Little published detail on foam layers and thickness

Sealy By Slumber Cushion Firm Mattress prices at every store

  • Mattress FirmNew

    In stock

    $1,379.99Free shippingObserved at 10:43 AM
    Visit Mattress Firm

Store links may earn us a commission. Price via Klarna.

Sealy By Slumber Cushion Firm Mattress price history

Lowest price we've seen: $1,379.99 on Nov 7 at Mattress Firm. Tracked across 1 store since Nov 7.

Specifications

Bed Size
Twin XLSource
Comfort Level
FirmSource
Filling
FoamSource

Questions and answers

Is the Sealy By Slumber Cushion Firm good for side sleepers?
Probably not. It is a firm foam mattress, and side sleepers usually need more give at the shoulder and hip. Back and stomach sleepers are the better fit.
What size is this mattress?
It is sold here in Twin XL, the extra-long twin size used in dorm rooms and adjustable beds. Check that your frame matches Twin XL before ordering.
Is $1,379.99 a good price for this mattress?
Hard to say. Only one new price is listed, $1,379.99 at Mattress Firm as of November 7, 2026, so there is no second store to compare against. Compare it with other Sealy firm foam models at the same size.
Does it need a box spring?
An all-foam mattress like this generally works on a solid platform or slatted base. A box spring is not required, but check Sealy's warranty terms for the base you use.
Is it good for a dorm room?
Twin XL is the standard dorm size, so the fit is right. The firm feel and all-foam build also hold up well on bunk and platform frames.
When is this mattress cheapest?
Mattress prices usually drop around major holiday sales and during store clearance events. With only one listed price, track it over a few weeks before buying.
Where is the Sealy By Slumber Cushion Firm Mattress cheapest?
At Mattress Firm, for $1,379.99, as of our latest check.

Stores we've priced the Sealy By Slumber Cushion Firm Mattress at

  • Mattress Firm deals and prices

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