King Koil Smartlife Lendall

The SmartLife Lendall Plush Mattress is the ultimate in body conformance. It’s a feel like no other that you have to try out for yourself. Come and experience the SmartLife technology adjusting to your unique body shape and size.

SmartLife features patented body sensing technology that adjusts to your body while you sleep, giving you support and comfort where you need it.

PureCare Silver five Sided Mattress Protector

from $94.99

get it Delivery date contingent on available inventory

Healthy Sleep Ultra-Tech Advanced Pillow

from $99.99

get it Delivery date contingent on available inventory

Add it

subtotal:

$4,999.99

get it Delivery date contingent on available inventory

Local
Delivery

Delivery and set up is included for free for all orders greater than $399 and if within 25 miles of any Sit ‘n Sleep store.

We will also "haul away" your old mattress and box spring upon delivery of your new order: Just let us know!

Next day delivery on available inventory. Not applicable for UPS and FedEx orders. See our COVID-19 page for more information.

120-Night Sleep Trial

Buying a new mattress is not something you do everyday. Our 120-night sleep trial and comfort guarantee means you can rest easy.

10 Year Warranty

You spend a third of your life asleep on your mattress. Shouldn't you at least lay on it first? Come visit one of our 39 store locations and get comfy with your purchase.

Mattress Removal

We will "haul away" your old mattress and box spring upon delivery of your new order: Just let us know if you would like this service.

Add a Base and Frame:

Knickerbocker Promo Frame

from $67.00

get it Delivery date contingent on available inventory

On Sale

Infinity Platform

from $349.99

$299.99

get it Delivery date contingent on available inventory

Sealy Ease 4.0 Adjustable Base

from $914.00

get it Delivery date contingent on available inventory

Have Questions?

We're here to help. Give us a call or visit your local store.

Key Feature

SmartLife’s Smart Cell Technology

Ready for Your Best Night’s Sleep?

Tranquil Memory Foam

  • regulates heat
  • highly breathable for superior airflow
  • conforms to body’s curves

King Koil Signature HD Foam

  • ultra plush comfort
  • cradling comfort

ioBED Core Technology featuring Smart Cells

  • patented Body Sensing Technology
  • automatically adjusts to each individual’s unique body shape, height and weight
  • Continuously monitors and adjusts to the individual’s sleep position to ensure proper support and pressure relieving sleep
  • Smart Cell Technology incorporates 80 individual Smart cells and 8 independently controlled zones from head to toe

Measures Your Sleep Quality

  • The SmartLife app will tracking an overview of your sleep quality.
  • It will measure your sleep time, Sleep State Results and overall score.

Dual Firmness Control

  • Left and right, independent firmness controls allow for individualized comfort and support.

Relaxation Mode with Smart Alarm

  • Wake up peacefully each morning to a gentle wave motion versus a traditional loud alarm clock.

Mattress Height (Approx.) 13.5”
Mattress is adjustable friendly - works well on motion bases
25 Year Limited Warranty
Proudly designed & built in the USA since 1898

This manufacturer or product line does not offer promotional discounts so promotional or discount/coupon codes will not apply to this product

King Koil has developed a sleep system that adjusts to your unique size and continuously adapts to the way you move.

SmartLife features patented body sensing technology that adjusts to your body while you sleep, giving you support and comfort where you need it. 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.

SmartLife makes it simple to control and track your sleep remotely from the SmartLife app. You can view your daily, monthly, or yearly sleep statistics to gain a deeper understanding of the way you sleep.

Use the SmartLife app to manually adjust the firmness to your comfort level so that you can experience your SmartLife Mattress exactly the way you want it. And when it’s time for you to wake up and make the most of your day let SmartLife’s Relaxation Mode gently ease you out of bed with a gentle wave motion.

No matter what each day holds, the journey always begins in your new SmartLife Mattress.

Approx.
Queen 60" x 80" x 13.5"
King 76" x 80" x 13.5"
CA King 72" x 84" x 12"
Split Top King 76" x 80" x 13.5"
Split Top CA King 72" x 84" x 13.5"

What Customers Are Saying