Name: King Koil Smartlife SL Plush Latex Mattress
Brand: King Koil
Price: 5199.0 USD
Availability: InStock

King Koil Smartlife SL Plush Latex Mattress

Smarter Sleep, Personalized Comfort

The King Koil SmartLife combines advanced body-sensing technology with the natural luxury of Talalay Latex to deliver a personalized sleep experience every night. Designed with cutting-edge microprocessors and digital pressure sensors, this mattress automatically adapts to your unique body type, sleep position, and movements giving you balanced support and plush pressure relief exactly where you need it.

$5,199.00

Shipping calculated at checkout.

Size

Queen

King

Split Top King

Cal King

Add Foundation

Mattress Only

Mattress + Adjustable Base

🛡️ 25-Year Warranty
🏅 Made in USA
💳 Financing Available

Materials & Construction:

Personalized Support Every Night:
With 80 SmartCells™ and 8 independent comfort zones, the SmartLife system adapts to your unique body type, sleep style, and movements.

Natural Talalay Plush Latex:
Highly elastic, durable, and naturally pressure-relieving for a buoyant, cloud-like sleep experience.

Cooling Phase-Change Cover:
Advanced PCM technology keeps the surface cool and balanced, night after night.

SmartLife App Control:
Connect via iOS or Android to fine-tune comfort settings, track sleep, and personalize your side of the bed.

Handcrafted in the USA:
Backed by a 25-year warranty for lasting quality and peace of mind.

Queen

60" x 80" — Height: 13–14"

Standard fit for most bedrooms

King

76" x 80" — Height: 13–14"

Spacious sleep surface for couples

Split Head King

76" x 80" (split top ~34") — Height: 13–14"

Independent head adjustability for each sleeper

California King

72" x 84" — Height: 13–14"

Extra length for taller sleepers

*Height may vary slightly depending on comfort model (Plush vs. Medium).

FedEx Delivery

If you live in the Contiguous (lower 48) United States, all our products are delivered via FedEx at no charge. For other areas, call 615-257-0770 for a discounted shipping quote. FREE select at checkout.

In-Home Set up

A trained professional will set up your mattress in the room of your choice and remove all packaging. In-home set up + old mattress removal A trained professional will set up your mattress in the room of your choice and remove all packaging. They will also remove and recycle your old mattress. up to $299* select at checkout.

In-Home Setup + old mattress removal

A trained professional will set up your mattress in the room of your choice and remove all packaging. They will also remove and recycle your old mattress. up to $449* select at checkout.

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Discover the Future of Smart Sleep

The King Koil SmartLife Plush Latex Mattress is engineered to transform the way you rest. Featuring patented body-sensing SmartCell™ technology, this intelligent mattress automatically adjusts to your body and adapts to every movement throughout the night. With dual firmness controls, a soothing massage relaxation mode, and full integration with the SmartLife mobile app, you’ll have complete control of your comfort. The app also tracks your sleep quality and includes a gentle smart alarm to wake you refreshed. Upgrade to the SmartLife sleep system today and experience personalized comfort, better support, and deeper rest every night.

No More Compromising

Tired of compromising on sleep? The SmartLife mattress is designed for couples, allowing both you and your partner to customize your side of the bed with individual comfort settings, from firm to soft. No matter your sleep position or firmness preference, SmartLife ensures a personalized sleep experience, so you both wake up feeling refreshed and ready to take on the day.

Continous Support Throughout the Night

Searching for a mattress that truly adapts to you? The SmartLife mattress with Adaptive Support automatically adjusts its firmness and redistributes air as you move, ensuring consistent comfort and proper ergonomic alignment all night long. This means both you and your partner get personalized support and pressure relief, no matter how much you shift, leading to a more restorative and comfortable sleep.

The Mattress that knows your body

SmartLife features patented body sensing technology that adjusts to your body while you sleep, giving you support and comfort where you need it. This technology continuously monitors the individuals sleep position and automatically adjusts to ensure proper sleep posture and pressure relief. SmartLife’s Smart Cell Technology includes over 80 individual Smart Cells in eight independently controlled zones using thousands of algorithms to give your unique body the support and comfort it needs.

See Why SmartLife is the Smarter Choice over Sleep Number

Compare the advanced features and superior technology that make SmartLife the clear winner for your sleep comfort.

Features	RECOMMENDED SmartLife	Sleep Number i10
Body Sensing Technology	✓	✗
Adaptive Support	✓	✗
Personalized Comfort	✓	✓
Support System	80 Smart Cells	2 Air Bladders
Independent Zones	8 Zones (4 per side)	2 Zones (1 per side)
Gap Between Sleepers	✓	✗
Mobile App Controlled	✓	✗
Relaxation Mode / Alarm	✓	✗
Sleep Data Provided	✓	✗
Cooling Sleeping Surface	✓	✗
Adjustable Base Friendly	✓	✗
Control Unit / Location	Inside of Mattress	Air Pump Under Bed
Warranty	25 Years Limited	15 Years Limited

People Love the SmartLife Mattress

★★★★★
Finally an organic mattress that actually helps my back. The medium-firm support keeps my spine aligned and I wake up with less pain. Love that it’s GOTS-certified and made locally.
Alex P

★★★★★
I used to wake up sweating. Not anymore!!! The Sage mattress sleeps cool all night and the cotton top feels breathable and natural. Great value for a certified organic mattress.
Priya S.
Smyrna, TN

★★★★★
Excellent stitching and solid build. You can tell this was handcrafted. We tried it in-store at Cloud Mattress Co and chose white-glove delivery. Setup was seamless and the mattress feels like it will last.
Marcus L.

★★★★★
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Los Angeles, CA

★★★★★
As parents we wanted a non-toxic mattress for the nursery — Sage checked every box. Low emissions, hypoallergenic, and a clean, natural feel. Highly recommend for families.
Sarah & Tom H.

Try SmartLife In-Store

Visit our showroom to experience the King Koil SmartLife SL Plush Latex Mattress in person.

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King Koil Smartlife SL Plush Latex Mattress