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Kingsdown
Kingsdown Castlegate Hybrid Firm Mattress

Kingsdown Castlegate Hybrid Firm Mattress

4.4· 71 ratings

Last price we saw

$849.99at Mattress Warehouse, last seen Nov 5

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Our take on the Kingsdown Castlegate Hybrid Firm Mattress

The Kingsdown Castlegate is a firm hybrid mattress that pairs wrapped OptiCoils with gel memory foam, latex and gel fiber. It is built for stomach sleepers and hot sleepers, with cooling materials and dual lumbar support. The quilted top adds surface cushioning over the firm core. It is an everyday-use mattress rather than a budget or entry-level pick.

Best forStomach sleepers who need a firm, flat surfaceHot sleepers who want cooling foams and fibersBack sleepers who prefer firm supportCouples who want coil-based bounce and edge support
Pros
  • Firm feel keeps the spine neutral for stomach sleepers
  • Hybrid coil core adds bounce and airflow
  • Gel memory foam and gel fiber are aimed at heat buildup
  • Dual lumbar support targets the lower back
  • Quilted top softens the firm surface slightly
Cons
  • Firm may be too hard for side sleepers
  • Hybrid construction is heavy and hard to move alone
  • Latex and gel foams can feel different from all-foam beds
  • Premium Kingsdown pricing puts it above budget hybrids

Kingsdown Castlegate Hybrid Firm Mattress prices at every store

  • Mattress WarehouseCheck price at Mattress Warehouse
  • Sleep OutfittersCheck price at Sleep Outfitters
  • Mattress WarehouseCheck price at Mattress Warehouse

Kingsdown Castlegate Hybrid Firm Mattress price history

Lowest price we've seen: $849.99 on Nov 5 at Mattress Warehouse. Tracked across 3 stores since Nov 5.

What reviewers say

Rated 4.4 out of 5 from 71 ratings, the Castlegate draws mostly positive feedback for its firm support and cooling. Some owners find it firmer than expected.

Pros
  • Firm support that suits stomach and back sleepers
  • Sleeps cooler than expected for a foam hybrid
  • Solid lower-back support
Cons
  • Firmer than some shoppers anticipated
  • Heavy and awkward to set up

Specifications

Firmness Level
Firm
Mattress Type
Hybrid
Type
Mattress
Sleep Position
Stomach Sleeper
Core Material
Foam
Material
Latex, Gel Fiber, Gel Memory Foam
Fill Material
Latex, Foam, Gel Fiber, Gel Memory Foam
Fill Type
Gel Memory Foam
Fill Style
Firm
Coil Type
Wrapped OptiCoils
Construction Highlights
Quilt
Typical Users
UNISEX
Solution For
Hot Sleepers

Questions and answers

Is the Kingsdown Castlegate Firm good for side sleepers?
It is a firm mattress, so most side sleepers will find it too hard at the shoulder and hip. It suits stomach and back sleepers better.
Does it sleep cool?
Kingsdown markets it for hot sleepers, using gel memory foam, gel fiber and a coil core for airflow. Most owners report it sleeps cooler than all-foam beds.
What is inside the Castlegate Hybrid?
Wrapped OptiCoils over a foam core, with latex, gel memory foam and gel fiber in the comfort layers. The top is quilted.
How firm is it compared with other hybrids?
It sits at the firm end of the hybrid range. Shoppers used to medium hybrids often find it noticeably harder.
Does it need a box spring?
A hybrid with wrapped coils works on a solid platform or a slatted frame. A box spring is optional and mainly adds height.
What do buyers say about the Kingsdown Castlegate Hybrid Firm Mattress?
Rated 4.4 out of 5 from 71 ratings.
Where can I buy the Kingsdown Castlegate Hybrid Firm Mattress?
2 stores we checked sell it, including Mattress Warehouse, Sleep Outfitters.