Tempur Sealy International (TSI)
Sealy Posturepedic Engineering Specifications and Coil Metrology
Manufacturer Specification
Sealy Posturepedic Plus vs Saatva Classic
Traditional innerspring showdown: Response Pro HD encased coils (Sealy) vs dual-tier Bonnell + micro-coils (Saatva), lumbar support, and edge durability.
Zoned Pocket Coils (Sealy) vs Dual-Coils (Saatva)
Direct answer summary
The Sealy Posturepedic Plus and Saatva Classic represent the pinnacle of traditional American innerspring design. Sealy utilizes their Response Pro HD Encased Coil system (up to 1,072 coils in Queen) with targeted center reinforcement (Posturepedic technology) and DuraFlex coil edge support. Saatva Classic uses an American dual-coil build (416 Bonnell base + 884 upper pocket coils) with a Lumbar Zone Active Wire and organic cotton cover.
Key points
Sealy Posturepedic Plus uses 1,072 Response Pro HD pocket coils with targeted center support.
Saatva Classic uses a dual-coil architecture (Bonnell base + upper pocket coils) with Active Wire.
Sealy excels in motion isolation and edge coil durability; Saatva leads in natural materials and airflow.
Interactive example
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3D Layer-Peel Visualizer
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Interactive Exploded Architecture & Layer Inspection
Peel through the physical mattress assembly to audit coil gauge, foam density (PCF), indentation load deflection (ILD), and flame barrier composition.
What's insideDrawing only, layer order not confirmed
Sealy Posturepedic vs Saatva Innerspring layers
Height: 12.50"
Layers: 3 Layers
1/3
All
Active Layer: Comfort Quilt / Cover
2" (QUILT)Thickness: 2"Material: Surface-Guard Allergen Cover vs Organic Cotton
Layers, top to bottom (3)
Click to expand specsSealy knit vs Saatva organic cotton Euro top
Thickness2 inches16.0% of stack
MaterialSurface-Guard Allergen Cover vs Organic Cotton
Center third reinforcement technology
Thickness2.5 inches20.0% of stack
MaterialTargeted Gel Foam / Active Wire
Foam Density3 pcfStandard density
1,072 pocket coils vs dual-tier Bonnell system
Thickness8 inches64.0% of stack
MaterialResponse Pro HD Coils vs Dual Bonnell
Coil Wire Gauge14.5 AWGFirm support spring
Specifications
Recorded specifications
Values and benchmarks recorded for this question.
| Specification | Measured value | Benchmark | Status |
|---|---|---|---|
| Coil Count in Queen Size | Sealy: 1,072 Coils; Saatva: 1,300 Total Coils (Combined) | High-Density Coil Construction | pass |
| Center Lumbar Reinforcement | Sealy: Targeted Gel Memory Zone; Saatva: Active Steel Wire | Center Third Support Technology | pass |
| Edge Support Engineering | Sealy: DuraFlex Coil Border; Saatva: High-Density Foam Rails | Heavy Sitting Support | pass |
| Fiberglass Content Audit | Saatva: 100% Fiberglass-Free; Sealy: Silica/Glass Fire Sock | Material Safety Transparency | pass |
Standards reference: Benchmarks derived from ASTM D3574 (flexible cellular foam), CPSC 16 CFR 1633 (open flame flammability), and clinical capillary closing thresholds (32.0 mmHg).
Checklist
Comparative Spec Verification Checklist
Step-by-step inspection to detect mid-production substitutions and compare component specs.
- 01
Check Flame Barrier Preference
Select Saatva Classic if you want guaranteed natural thistle and zero glass fibers.
Watch for: Sealy mattresses utilize internal fiberglass/silica flame barriers.
- 02
Evaluate Motion Transfer Between Partners
Choose Sealy Posturepedic Plus if your partner tosses; independent coils reduce disturbance.
Watch for: Saatva's linked Bonnell base coils transfer slightly more surface ripple.
- 03
Compare Warranty Inspection Terms
Saatva requires 1.0" sag for warranty claims; Sealy requires 1.5" unweighted sag.
Watch for: Sealy denies claims if visible sag is under 1.5 inches.
Sources
Sources for this answer
Read the source documents behind the thresholds, measurements, and policy details used here.
View source
ASTM International
Standard Test Methods for Evaluating Innersprings and Mattresses
ASTM F1566