Slumber Castle White King Mattress 12 inch Pillow Top Medium Firm Hybrid Pocket Spring Mattress in a Box
King Mattress 12 inch, Pillow Top, Medium Firm, Hybrid Pocket Spring Mattress in a Box
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Slumber Castle

King Mattress 12 inch, Pillow Top, Medium Firm, Hybrid Pocket Spring Mattress in a Box

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Bed Size:King
Actual Color:White
Mattress Thickness:12 in

Key item features

  • Hybrid Design: Combines memory foam with individually wrapped pocket springs for optimal comfort and support, suitable for adults, teens, and children.
  • Breathable Fabric: Features an ultra-soft knitted fabric that promotes airflow, wicks away moisture, and keeps you cool for a refreshing sleep.
  • Motion Isolation: Advanced pocket spring system isolates motion, reducing disturbances for quiet, uninterrupted sleep.
  • Stable Edges: Reinforced dual-edge technology provides firm, reliable support, preventing sagging and keeping you securely centered.
  • Convenient Delivery: Compressed and delivered in a box, making it easy to move and set up, expanding fully within 24-72 hours.
  • King Dimensions: Measures 80 inches long, 76 inches wide, and 12 inches high, offering a medium-firm feel.
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Current price is $199.99
Price when purchased online
  • Free shipping
  • Free 30-day returns
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Arrives by Tue, Jul 7
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Sold and shipped by Slumber Castle US
3 stars out of 5, based on 1 seller review(3.0)
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4.3 out of 5 stars
stars58 ratings15 reviews
How item rating is calculated
  1. 5 stars71% (41)
  2. 4 stars9% (5)
  3. 3 stars9% (5)
  4. 2 stars3% (2)
  5. 1 star9% (5)
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Showing 1-3 of 15 reviews

Mar 6, 2026
Wendy
Item details
Bed size: Queen
Color: White
Mattress thickness: 12 in
Sold and shipped bySlumber Castle US
5 out of 5 stars review

Verified Purchase

Unboxed this queen hybrid mattress and it was ready in hours—super easy setup. The medium-firm feel with pillow top cradles pressure points perfectly for side and back sleeping, while the pocket coils keep everything supportive and motion-isolated (partner doesn’t wake me up!). Breathable, no off-gassing smell, and worth every penny. Sleeping like a baby now!

Incentivized Review
Helpful?0VGO6ZLPOWCS17547851418
Jun 4, 2026
Alexa
Item details
Bed size: King
Color: White
Mattress thickness: 12 in
Sold and shipped bySlumber Castle US
5 out of 5 stars review

Verified Purchase

King size mattress

Looked around for awhile for a mattress. Me and my husband have had a queen size since we got together. It was time for a bigger bed. Looked around on Amazon, looked around at other places. Found this mattress and I haven't gotten any good sleep until we got this one and I feel so much more refreshed everyone I wake up in the morning or take a nap!

Incentivized Review
Helpful?0VGO6ZLPOWCS17547851418
Apr 24, 2026
Maruf
Item details
Bed size: Queen
Color: Milticolor
Mattress thickness: 12 in
Sold and shipped bySlumber Castle US
5 out of 5 stars review

Verified Purchase

I feel so nice and comfortable

Incentivized Review
Helpful?0VGO6ZLPOWCS17547851418