King Split Head Micro-Coils Compatible with Adjustable Bed Default Category
Micro-coils are small coils used in the comfort layers, above the main support. They add bounce and airflow close to the surface and respond to small movements, giving a lighter, more lifted feel than foam alone.
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Upgrade your sleep at National Mattress
Discover a mattress that transforms your sleep into a truly rejuvenating experience. We offer a wide variety of options to suit every sleep style and preference, ensuring a better night's sleep.
Why Choose Us?
- Variety: From plush to firm, we have options for every body type and sleep style.
- Quality: Trusted brands and top-notch materials for long-lasting comfort.
- Sleep Trials & Warranties: Enjoy peace of mind with flexible trials and warranties.
- Expert Advice: Get personalized recommendations from our sleep specialists.
Mattress Selection Includes
- Memory Foam: Contours to your body for personalized comfort and pressure relief.
- Hybrid: Combines responsive springs with foam for balanced support and comfort.
- Innerspring: Provides firm support, bounce, and cooling airflow.
- Latex: Hypoallergenic, eco-friendly, and exceptionally comfortable.
- Adjustable Beds: Customize your sleep position for optimal comfort.

Clearance Mattresses
Explore our discounted mattress collection, featuring limited quantities, floor models, and more.
Filters
- Single/Twin 38" x 75". One sleeper, kids and guests. 26
- Twin XL 38" x 80". Twin width, 5" longer. 33
- Double/Full 54" x 75". Room to stretch for one sleeper. 31
- Queen 60" x 80". Most popular for couples. 35
- King 76" x 80". Couples who want extra room. 37
- King Split Head 76" x 80". Head splits for adjustable bases. 0
- Memory Foam Slow foam that hugs and eases pressure. 3
- Gel-Infused Memory Foam Contouring foam with cooling gel added. 2
- Micro-Coils Tiny coils in the top layers for bounce. 0
- Copper, Charcoal or Graphite Infusion Added to foam to help draw heat away. 3
- Cooling Fabric Cover knit to feel cool to the touch. 3
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