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Deal.ai › Stearns & Foster › Mattresses
Stearns & Foster
Stearns & Foster Reserve Medium II 15.5 Tight Top Mattress Twin XL

Stearns & Foster Reserve Medium II 15.5 Tight Top Mattress Twin XL

Best price now

$4,099.00at Mattress FirmChecked 9 h ago

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Price facts

  • Lowest price today: $4,099.00 at Mattress Firm (checked Nov 11, 2026).

Our take on the Stearns & Foster Reserve Medium II 15.5 Tight Top Mattress Twin XL

The Stearns & Foster Reserve Medium II is a 15.5-inch tight-top mattress with a medium feel, pocket springs and a memory foam layer. It sits near the top of the Stearns & Foster line, above the Estate and Lux Estate collections, so it uses denser foams, more coil support and heavier upholstery than those models. The medium tight top suits back and combination sleepers who want support without a deep sink, and couples who dislike motion transfer. It is a big, heavy mattress, so it needs a sturdy foundation and is harder to move than a bed-in-a-box.

Best forBack and combination sleepers who want a medium feelCouples who want less motion transferShoppers upgrading from an entry-level innerspringPeople who prefer a traditional tight-top mattress over a pillow top
Pros
  • Medium tight top gives support without a deep sink
  • Pocket springs limit motion transfer between partners
  • Dense memory foam layer cushions pressure points
  • Heavier build and upholstery than the Estate and Lux Estate lines
  • Tight top resists the body impressions common on pillow tops
Cons
  • Very heavy and hard to move or rotate
  • Needs a strong foundation and a room that fits 15.5 inches of height
  • Medium feel may be too firm for strict side sleepers
  • Costs more than the Estate and Lux Estate models with similar coil counts
  • Twin XL sizing limits it to adjustable bases and single sleepers

Stearns & Foster Reserve Medium II 15.5 Tight Top Mattress Twin XL prices at every store

  • Mattress FirmNew

    In stock

    $4,099.00Free shippingChecked 9 h ago
    Visit Mattress Firm

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

Stearns & Foster Reserve Medium II 15.5 Tight Top Mattress Twin XL price history

Lowest price we've seen: $4,099.00 on Nov 11 at Mattress Firm. Tracked across 1 store since Nov 11.

What reviewers say

Owners of the Reserve line describe a supportive medium feel that holds up well over time, with less sagging than cheaper innersprings. Some side sleepers find it firmer than expected, and several mention the weight makes setup and rotation a two-person job.

What people mention
  • FirmnessMixedSome owners call the medium feel supportive, while side sleepers say it is firmer than expected.
  • Motion transferPraisedCouples report the pocket springs keep movement from carrying across the bed.
  • DurabilityPraisedOwners say it holds its shape and resists sagging better than cheaper innersprings.
  • WeightCriticisedThe thick, heavy build makes setup and rotation a two-person job.
  • FoundationCriticisedOwners note it needs a solid, supportive base to perform as intended.

About the Stearns & Foster Reserve Medium II 15.5 Tight Top Mattress Twin XL

The Stearns & Foster Reserve Medium II is a Twin XL mattress with a tight top. It is 15.5 inches thick and has a medium comfort level.

The mattress uses a pocket spring system with memory foam filling.

Brand
Stearns & Foster
Size
Twin XL
Comfort level
Medium
Spring system
Pocket springs
Filling
Memory foam
Thickness
15.5 inches
Top style
Tight top

Specifications

Bed Size
Twin XLSource
Spring System
Pocket SpringsSource
Comfort Level
MediumSource
Filling
Memory FoamSource
Thickness Mattress (")

Questions and answers

How does the Reserve Medium II differ from the Lux Estate?
The Reserve sits above the Lux Estate, with denser foams, more coil support and heavier upholstery. The Lux Estate is softer on the edges and lighter to move.
Is a medium tight top good for side sleepers?
It depends on weight and build. Many side sleepers find the medium tight top firm, and lighter side sleepers may want a softer model or a topper.
What foundation does it need?
A sturdy foundation or adjustable base rated for a heavy mattress. A weak box spring can cause sagging and void the warranty.
Does it work on an adjustable base?
Yes. The Twin XL size is common on adjustable bases, and the pocket springs flex with the base.
How thick is it, and will sheets fit?
It is 15.5 inches thick, so use deep-pocket sheets. Standard sheets may pull off the corners.
Is the Twin XL right for one sleeper?
Yes. Twin XL is 38 by 80 inches, long enough for most adults and common in dorms and guest rooms.
Where is the Stearns & Foster Reserve Medium II 15.5 Tight Top Mattress Twin XL cheapest?
At Mattress Firm, for $4,099.00, as of our latest check.

Stores we've priced the Stearns & Foster Reserve Medium II 15.5 Tight Top Mattress Twin XL at

  • Mattress Firm deals and prices

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