Fall Sale

King Koil Carina

This mattress is constructed of three layers of memory foam technology for ultimate comfort and cooling, including a top gel memory foam, middle cool cloud gel-infused foam, and thick high density poly base foam.

Alleviates pressure points so that you don't wake up stiff or sore, helps with spinal alignment, and works great with adjustable bed frames.

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


$899.99 $999.99

get it Delivery date contingent on available inventory


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


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.

Medium Firm

Key Feature

Waterfall Edge Stretch-Knit Cover over 12" of memory foam technology

Ready for Your Best Night’s Sleep?

Waterfall Edge Stretch-knit Cover
2” Gel Memory Foam
4” Cool Cloud Gel-Infused Foam
6” High-Density Poly Base Foam

Foundation Option:
Available in Standard (9")
Available in Low-Profile (5")
King Koil Frontier Motion Base

Mattress is adjustable friendly - works well on motion bases.

10 Year Warranty

Mattress Height (Approx.) 12”

The Wonders of Memory Foam

Memory foam options like the King Koil mattress have become incredibly popular in recent years because they offer a great night of sleep and advantages you can’t get from other types of sleep surfaces. No matter what you’re looking for in your next mattress, memory foam likely checks all the boxes. These are some of the biggest benefits.

  • Ample Support for Pressure Points - Memory foam was actually first developed to help patients in recovery because it cradles and cushions the body. Pressure points in the hips, back and shoulders receive ample support so don’t you wake up stiff or sore.
  • Back and Spine Alignment - When you sleep on the memory foam surface of the King Coil mattress, every inch of your body receives equal amounts of support. That means you don’t sink into the mattress, helping keep your spine aligned and your back pain free. 
  • Sleep in Any Position - Some mattresses are better for back and side sleepers while others are better suited to stomach sleepers. Memory foam mattresses are comfortable in any position because they develop sustained support across the entire body. 
  • Don’t Disturb Your Partner - If you (or your partner) toss and turn at night or sleep on different schedules, memory foam is ideal. The material traps motion so that no matter how much one person in the bed is moving, the other person doesn’t feel it and stays soundly asleep.
  • Easier on Allergies - A King Koil mattress is perfect for anyone with asthma, allergies, or respiratory issues of any kind. Memory foam is naturally hypo-allergenic and resistant to dust mites, helping you breath deeply and cleanly throughout the night. 
  • Ideal for Adjustable - All the benefits of memory foam become even better when you can elevate your head or legs using an adjustable bed frame. Memory foam can bend and flex easily, allowing it to perfectly conform to the frame without hurting the mattress.
  • Long-Lasting Durability - Beds like the King Coil mattress are a great investment because memory foam is highly-durable and long lasting. Even after years of nightly use, these mattresses continue to provide impressive comfort and support. You will love your mattress for longer and get more for your money.
12 inches of foam technology that provide temperature regulation, cooling breathability, and pressure-relief.
Twin 38" x 75" x 12"
Twin XL 38" x 80" x 12"
Full 54" x 75" x 12"
Queen 60" x 80" x 12"
King 76" x 80" x 12"
CA King 72" x 84" x 12"

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