The Serta Perfect Sleeper Cascade Bluff Medium Hybrid Mattress is a 13.5-inch hybrid mattress designed to deliver a balanced medium feel suitable for back, side, and stomach sleepers. It combines supportive innerspring coils with pressure-relieving memory foam to target back pain and improve sleep quality.  

Key Features:

• Feel & Comfort Level: Medium with a tight-top design offering a balance between cushioning and sturdy support.  
• Height / Profile: 13.5 inches high.  
• Support System: Q4™ Support System featuring 920-density 4-in-1 pocketed coils for even weight distribution.  
• Targeted Pressure Relief: 5-Zone Comfort design with alternating plush and firm coil zones that contour to the shoulders, back, and hips.  
• Cooling & Comfort Foams: EverCool® Supreme Memory Foam paired with CoolFeel® Plus Fabric and breathable wool to dissipate body heat and maintain a cool surface.  
• Edge Support: BestEdge® Foam Encasement to increase edge-to-edge stability and usability.  
• Certifications & Safety: Uses CertiPUR-US® certified foams free of harmful chemicals. Base
• Compatibility: Works with traditional box springs, slatted frames, platform bases, and adjustable bases.