Restonic
Soft 11-Inch Plush Memory Foam Twin XL Mattress

Sale price $785.23 Regular price $1,141.99

Very low stock (11 units)

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Restonic
Soft 12-Inch ComfortCare Hybrid Twin XL Mattress

Sale price $1,002.06 Regular price $1,458.99

Low stock (25 units)

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Restonic
Medium 10-Inch Plush Hybrid Euro Top Twin XL Mattress

Sale price $638.79 Regular price $928.99

Low stock (25 units)

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Restonic
Firm 13-Inch TempaGel Hybrid Foam Twin XL Mattress

Sale price $1,265.13 Regular price $1,840.99

Low stock (22 units)

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Restonic
Firm 14-Inch ComfortCare Hybrid Twin XL Mattress

Sale price $1,214.82 Regular price $1,768.99

Low stock (25 units)

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Restonic
Twin XL Firm 13-Inch Hybrid Cooling Support Mattress

Sale price $956.15 Regular price $1,392.99

Low stock (25 units)

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Restonic
Soft 13-Inch Plush Hybrid Twin XL Mattress

Sale price $1,438.42 Regular price $2,093.99

Low stock (25 units)

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Restonic
Twin XL Firm 12-Inch ComfortCare Hybrid Foam Mattress

Sale price $1,328.08 Regular price $1,933.99

Low stock (25 units)

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Restonic
Soft 14-Inch Plush Euro Top Twin XL Mattress

Sale price $1,550.35 Regular price $2,256.99

Low stock (25 units)

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MD Mattress
Medium 14-Inch Plush Foam Spring Twin XL Mattress

Sale price $719.74 Regular price $1,048.99

In stock

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MD Mattress
Medium 12-Inch Plush Foam Twin XL Mattress

Sale price $531.14 Regular price $769.99

In stock

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MD Mattress
Twin XL Firm 14-Inch Quilted Foam and Spring Mattress

Sale price $596.06 Regular price $1,048.99

In stock

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MD Mattress
Firm 14-Inch Ice Lux Quilted Twin XL Mattress

Sale price $592.44 Regular price $862.99

In stock

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MD Mattress
Soft 14-Inch Plush Quilted Twin XL Foam Spring Mattress

Sale price $592.44 Regular price $862.99

In stock

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MD Mattress
Soft 13-Inch Quilted Eurotop Hybrid Twin XL Mattress

Sale price $491.06 Regular price $715.99

In stock

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MD Mattress
Firm 6-Inch Gel Memory Foam Twin XL Mattress

Sale price $313.63 Regular price $452.99

In stock

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MD Mattress
Soft 14-Inch Ultra Plush Hybrid Twin XL Mattress

Sale price $612.86 Regular price $892.99

In stock

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MD Mattress
Soft 15-Inch Ultra Plush Foam Spring Twin XL Mattress

Sale price $648.98 Regular price $944.99

In stock

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MD Mattress
Medium 12-Inch Hybrid Plush Twin XL Mattress

Sale price $530.69 Regular price $773.99

In stock

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MD Mattress
Lux Firm 10-Inch Twin XL Foam Mattress

Sale price $453.38 Regular price $656.99

In stock

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MD Mattress
Soft 14-Inch Twin XL Foam Ultra Plush Mattress

Sale price $632.04 Regular price $915.99

In stock

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Veluna
Firm 8-Inch Gel-Infused Cooling Memory Foam Twin XL Mattress

Sale price $445.48 Regular price $709.99

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$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
$Firm 11-Inch Cooling Latex Foam Twin XL Mattress - Omega Lifestyles$
Driftwood
Firm 11-Inch Cooling Latex Foam Twin XL Mattress

Sale price $598.91 Regular price $1,363.99

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Dreamtide
Medium 12-Inch Isotonic Memory Foam Twin XL Mattress

Sale price $616.52 Regular price $960.99

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Slumberine
Medium 12-Inch Isotonic Memory Foam Twin XL Mattress

Sale price $724.02 Regular price $1,104.99

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Driftwood
Medium 12-Inch Isotonic Memory Foam Twin XL Mattress

Sale price $670.27 Regular price $1,032.99

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BedTech
Medium Firm 10-Inch Gel Comfort Twin XL Mattress

Sale price $451.31 Regular price $609.99

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BedTech
Soft 14-Inch Plush Copper Lux Phase Change Twin XL Mattress

Sale price $958.11 Regular price $1,395.99

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BedTech
Soft 12-Inch Cooling Memory Foam Twin XL Mattress

Sale price $847.19 Regular price $1,234.99

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Corsicana
Medium 10-Inch Twin XL Gel Memory Foam Pocketed Coil Mattress

Sale price $504.70 Regular price $735.99

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Corsicana
Firm 10-Inch Gel Memory Foam Twin XL Mattress

Sale price $611.49 Regular price $891.99

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Best Split King Innerspring Mattresses for Firm Support

Discover split king innerspring mattresses (two 38" x 80"), ideal for couples or back sleepers seeking classic, firm support. Each side features pocketed coils and cushioned tops, providing responsive bounce, spinal alignment, and breathability for cooler sleep. Choose from firm or plush options, with durable construction and eco-friendly materials for sustainability. Perfect for master suites or adjustable beds compatible with pocketed coils, our innerspring mattresses ensure long-lasting comfort. Enjoy free shipping, easy setup, and extended trial periods to find your ideal sleep experience. Shop now for top-rated designs backed by customer reviews and expert craftsmanship. Note: Confirm compatibility with adjustable bases, as traditional innersprings may bend.

Split King Innerspring Mattresses

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Best Split King Innerspring Mattresses for Firm Support

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