King Koil Intimate Serenity Euro Top Firm Mattress

Description

Supportive comfort with enhanced cushioning and cooling comfort.

If you prefer the supportive feel of a firm mattress but still want comfortable cushioning, the King Koil Intimate Serenity Euro Top Firm gives you the best of both. Its cushioned Euro top gently relieves pressure at the shoulders, hips, and back, while responsive layers of Talalay latex, memory foam, and coils provide the stable support you want from a firmer mattress.

Breathable Tencel, natural silk, New Zealand Joma wool, and airflow-promoting coils help keep you comfortably cool throughout the night. And because it’s handcrafted in the USA with King Koil’s premium materials and attention to detail, you’re getting the elevated comfort and craftsmanship the Intimate Collection is known for.

Best for back, side, and combination sleepers who prefer a firmer, more supportive feel but still want comfortable cushioning, pressure relief, and cool comfort.

Comfort Level: Firm

Handmade in the USA

Sleep Style: Back, Side, and Combination Sleepers

Mattress Type: Hybrid with graphite-infused Talalay latex, HyperGel memory foam, micro coils, natural silk and wool fibers, and individually wrapped coils

Adjustable Base Compatible: Yes

Benefits: Firm support, enhanced pressure relief, cooling comfort, responsive cushioning, motion isolation, edge-to-edge stability, and handcrafted durability

Sustainability: Crafted with responsibly selected materials, including natural silk and wool fibers, breathable TENCEL™ fabric, and durable components designed for lasting comfort and performance.

Quilt & Cover: A luxurious Euro top designed to deliver plush comfort, breathable performance, and long-lasting support.

• FlexKnit™ fabric with TENCEL™ offers exceptional softness and moisture management
• Natural silk and wool fibers promote airflow while helping regulate temperature
• HyperGel memory foam provides adaptive pressure relief with enhanced cooling comfort
• TailorMade™ hand tufting helps maintain lasting comfort and consistent support

Comfort Layers: Premium comfort materials cushion pressure points while maintaining a supportive, responsive feel.

• Graphite-infused Talalay latex delivers breathable, responsive comfort
• HyperGel memory foam contours to the body for enhanced pressure relief
• 2,000 Perimeter Zoned Micro Coils provide adaptive support, increased airflow, and reduced motion transfer

Support Core: The ContourFlex™ Encased Coil System delivers targeted support while helping promote proper spinal alignment and minimizing partner disturbance.

• 825 individually wrapped coils respond independently for personalized support
• Reinforced foam encasement enhances edge-to-edge stabilityEverlast Base Foam provides long-lasting structural support and durability

Recommended Foundation: Rio 2.0 Adjustable Bed Base | City Mattress

Dimensions

• Twin: 38" W x 75" L x 15" H; 76.57 lbs.
• Twin XL: 38" W x 80" L x 15" H; 79.96 lbs.
• Full: 53" W x 75" L x 15" H; 112.54 lbs.
• Queen: 60" W x 80" L x 15"; 124.48 lbs.
• Split Top Queen: 60" W x 80" L x 15" H; 127.98 lbs.
• King: 76" W x 80" L x 15" H; 160.97 lbs.
• Split Top King: 76" W x 80" L x 15" H; 163.97 lbs.
• Cal King: 72" W x 84" L x 15" H; 160.23 lbs.
• Split Top Cal King: 72" W x 84" L x 15" H; 163.50 lbs.