Perfect Sleeper X Knox 13.75" Hybrid Plush Mattress
Featuring 5 support zones designed for full-body spinal alignment with a combination of supportive coils and 1” Perfect Conform™ Memory Foam. Plus a classic quilted feel that makes for night after night of perfect sleep. Memory foam and cooling upgrades available.
For those that prefer a classic, quilted feel—featuring 5 support zones for full-body spinal alignment with responsive coils and graphite-infused memory foam, plus cooling technology.
Features
- 5 support zones designed for full-body alignment
- PerfectConform™ Memory Foam -For essential pressure relief
- CoolFeel™ System
Product Details
Dimensions
- Twin XL
- 39" W x 79.5" L x 13.75" H
- Full
- 54" W x 74.5" L x 13.75" H
- Queen
- 60" W x 79.5" L x 13.75" H
- King
- 76" W x 79.5" L x 13.75" H
- California King
- 72" W x 83.5" L x 13.75" H
Specifications
- Brand
- Serta
- Collection
- Perfect Sleeper X
- Type
- Hybrid
- Feel
- Plush
- Top
- Tight Top
- Profile
- 13.75 in
- Cover Color
- Black
- Warranty
- 10 Year Warranty
- Certifications
- CertiPUR-US(r) Certified
- Compatibility
- Adjustable Friendly
- Made in
- USA
Construction
- Layer 1
- Serta PillowSoft HD Foam (1.25")
- Layer 2
- PillowSoft Aire (1")
- Layer 3
- Cushion Gel Foam (1.5")
- Layer 4
- PerfectConform Graphite Memory Foam (1")
- Layer 5
- 5 ZoneActive Hybrid Design (8")
- Layer 6
- Support Foam (1")
- Coil Type
- Pocketed Coil
- Coil Count
- 448
- Coil Gauge
- 0.068"/0.074"
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