King Split Head Plant-Based Foam All
Plant-based foam, also called bio foam or soy foam, replaces part of the petroleum-based ingredients in standard foam with oils from plants such as soy. It feels and performs like conventional foam. Every mattress here has at least one layer the manufacturer describes as plant-based, bio-based or soy foam.
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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. 56
- Twin XL 38" x 80". Twin width, 5" longer. 51
- Double/Full 54" x 75". Room to stretch for one sleeper. 51
- RV Short Queen 60" x 75". Queen width for RVs and campers. 12
- Queen 60" x 80". Most popular for couples. 68
- King 76" x 80". Couples who want extra room. 60
- 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
- Copper, Charcoal or Graphite Infusion Added to foam to help draw heat away. 3
- Plant-Based Foam Foam made partly from plant oils. 0
- Cooling Fabric Cover knit to feel cool to the touch. 3
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