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- Midnight | Medium-Plush
Midnight | Medium-Plush
Midnight | Medium-Plush
Plush Cooling Comfort & Support
812+ people bought

Best Seller
- Plush Comfort: Medium-plush feel with gel-infused foams that cradle your body while maintaining support.
- Zoned Ergonomics: 5-Zone Contour Foam provides softer support at the shoulders and firmer reinforcement under the hips and back.
- Cooling Sleep Surface: Ice Cool™ quilted cover and breathable foam layers pull heat away for a refreshing night’s sleep.
- Edge-to-Edge Support: Foam-encased perimeter expands your usable sleep surface and makes getting in and out easier.
- Quiet Motion Isolation: 800+ pocketed coils reduce partner disturbance for uninterrupted rest.
Side
Back
Individual pocketed coil
Medium-Plush
Twin
$574
$499.95
Twin XL
$624
$549.95
Full
$779
$679.95
Queen
$799
$699.95
King
$1,099
$949.95
Split King
$1,249
$1,099.90

Plush Cooling Comfort & Support
Size guide
Size guide
Size | Dimensions | Weight |
---|---|---|
![]() Twin |
38"W x 74"L x 15"H | |
![]() Twin XL |
38"W x 80"L x 15"H | |
![]() Full |
54”W x 74”L x 15"H | |
![]() Queen |
60"W x 80"L x 15"H | |
![]() King |
76"W x 80"L x 15”H | |
![]() Split King |
38"W x 80"L x 15"H (Qty 2) |
Bed frame options

Foundation | High Profile (9")
$130

Foundation | High Profile (9")
Strong 9" Steel Box Spring Base
- Heavy-Duty Steel Support: Semi-Flex® grid design outperforms wood foundations for strength and longevity.
- No Squeaks or Creaks: Welded truss construction stays quiet through the night.
- Non-Skid Top Fabric: Prevents mattress movement for a secure sleep surface.
- Ready to Use: No assembly required—just place and go.
- Compatible with All Mattresses: Designed to work with any type of mattress for full-body support.
Twin
$130
Twin XL
$150
Full
$160
Queen
$180
King
$300
In stock. Delivery by August 24

Adjustable Base | 1.0 Starter
$350

Adjustable Base | 1.0 Starter
Essential Comfort Base | Affordable Head Adjustability
- Head-Up Comfort: Effortlessly raise the head of your bed for better sleep, lounging, or nighttime reading.
- Simple Wired Control: Easy-to-use wired remote for smooth, no-fuss head elevation.
- Customizable Height: Three-in-one leg segments (3", 4", 5") to match your ideal bed height.
Twin XL
$350
Full
$400
Queen
$400
King
$600
Split King
$700
In stock. Delivery by August 24

Adjustable Base | 2.0 Basic
$650
$779

Adjustable Base | 2.0 Basic
Functional Flex Base | User-Friendly
- Custom Comfort: Easily adjust head and feet settings for personalized sleep and relaxation.
- Convenient Control: Wireless remote with custom presets and flashlight for easy, personalized adjustments.
- Flexible Design: Adjustable leg heights cater to various bed heights and aesthetic preferences.
Twin XL
$779
$650
Full
$999
$800
Queen
$999
$800
King
$1,299
$1,000
Split King
$1,558
$1,300
In stock. Delivery by August 24

Foundation | High Profile (9")
$150

Foundation | High Profile (9")
Strong 9" Steel Box Spring Base
- Heavy-Duty Steel Support: Semi-Flex® grid design outperforms wood foundations for strength and longevity.
- No Squeaks or Creaks: Welded truss construction stays quiet through the night.
- Non-Skid Top Fabric: Prevents mattress movement for a secure sleep surface.
- Ready to Use: No assembly required—just place and go.
- Compatible with All Mattresses: Designed to work with any type of mattress for full-body support.
Twin
$130
Twin XL
$150
Full
$160
Queen
$180
King
$300
In stock. Delivery by August 24

Adjustable Base | 1.0 Starter
$400

Adjustable Base | 1.0 Starter
Essential Comfort Base | Affordable Head Adjustability
- Head-Up Comfort: Effortlessly raise the head of your bed for better sleep, lounging, or nighttime reading.
- Simple Wired Control: Easy-to-use wired remote for smooth, no-fuss head elevation.
- Customizable Height: Three-in-one leg segments (3", 4", 5") to match your ideal bed height.
Twin XL
$350
Full
$400
Queen
$400
King
$600
Split King
$700
In stock. Delivery by August 24

Adjustable Base | 2.0 Basic
$800
$999

Adjustable Base | 2.0 Basic
Functional Flex Base | User-Friendly
- Custom Comfort: Easily adjust head and feet settings for personalized sleep and relaxation.
- Convenient Control: Wireless remote with custom presets and flashlight for easy, personalized adjustments.
- Flexible Design: Adjustable leg heights cater to various bed heights and aesthetic preferences.
Twin XL
$779
$650
Full
$999
$800
Queen
$999
$800
King
$1,299
$1,000
Split King
$1,558
$1,300
In stock. Delivery by August 24

Foundation | High Profile (9")
$160

Foundation | High Profile (9")
Strong 9" Steel Box Spring Base
- Heavy-Duty Steel Support: Semi-Flex® grid design outperforms wood foundations for strength and longevity.
- No Squeaks or Creaks: Welded truss construction stays quiet through the night.
- Non-Skid Top Fabric: Prevents mattress movement for a secure sleep surface.
- Ready to Use: No assembly required—just place and go.
- Compatible with All Mattresses: Designed to work with any type of mattress for full-body support.
Twin
$130
Twin XL
$150
Full
$160
Queen
$180
King
$300
In stock. Delivery by August 24

Adjustable Base | 1.0 Starter
$400

Adjustable Base | 1.0 Starter
Essential Comfort Base | Affordable Head Adjustability
- Head-Up Comfort: Effortlessly raise the head of your bed for better sleep, lounging, or nighttime reading.
- Simple Wired Control: Easy-to-use wired remote for smooth, no-fuss head elevation.
- Customizable Height: Three-in-one leg segments (3", 4", 5") to match your ideal bed height.
Twin XL
$350
Full
$400
Queen
$400
King
$600
Split King
$700
In stock. Delivery by August 24

Adjustable Base | 2.0 Basic
$800
$999

Adjustable Base | 2.0 Basic
Functional Flex Base | User-Friendly
- Custom Comfort: Easily adjust head and feet settings for personalized sleep and relaxation.
- Convenient Control: Wireless remote with custom presets and flashlight for easy, personalized adjustments.
- Flexible Design: Adjustable leg heights cater to various bed heights and aesthetic preferences.
Twin XL
$779
$650
Full
$999
$800
Queen
$999
$800
King
$1,299
$1,000
Split King
$1,558
$1,300
In stock. Delivery by August 24

Foundation | High Profile (9")
$180

Foundation | High Profile (9")
Strong 9" Steel Box Spring Base
- Heavy-Duty Steel Support: Semi-Flex® grid design outperforms wood foundations for strength and longevity.
- No Squeaks or Creaks: Welded truss construction stays quiet through the night.
- Non-Skid Top Fabric: Prevents mattress movement for a secure sleep surface.
- Ready to Use: No assembly required—just place and go.
- Compatible with All Mattresses: Designed to work with any type of mattress for full-body support.
Twin
$130
Twin XL
$150
Full
$160
Queen
$180
King
$300
In stock. Delivery by August 24

Adjustable Base | 1.0 Starter
$600

Adjustable Base | 1.0 Starter
Essential Comfort Base | Affordable Head Adjustability
- Head-Up Comfort: Effortlessly raise the head of your bed for better sleep, lounging, or nighttime reading.
- Simple Wired Control: Easy-to-use wired remote for smooth, no-fuss head elevation.
- Customizable Height: Three-in-one leg segments (3", 4", 5") to match your ideal bed height.
Twin XL
$350
Full
$400
Queen
$400
King
$600
Split King
$700
In stock. Delivery by August 24

Adjustable Base | 2.0 Basic
$1,000
$1,299

Adjustable Base | 2.0 Basic
Functional Flex Base | User-Friendly
- Custom Comfort: Easily adjust head and feet settings for personalized sleep and relaxation.
- Convenient Control: Wireless remote with custom presets and flashlight for easy, personalized adjustments.
- Flexible Design: Adjustable leg heights cater to various bed heights and aesthetic preferences.
Twin XL
$779
$650
Full
$999
$800
Queen
$999
$800
King
$1,299
$1,000
Split King
$1,558
$1,300
In stock. Delivery by August 24

Foundation | High Profile (9")
$300

Foundation | High Profile (9")
Strong 9" Steel Box Spring Base
- Heavy-Duty Steel Support: Semi-Flex® grid design outperforms wood foundations for strength and longevity.
- No Squeaks or Creaks: Welded truss construction stays quiet through the night.
- Non-Skid Top Fabric: Prevents mattress movement for a secure sleep surface.
- Ready to Use: No assembly required—just place and go.
- Compatible with All Mattresses: Designed to work with any type of mattress for full-body support.
Twin
$130
Twin XL
$150
Full
$160
Queen
$180
King
$300
In stock. Delivery by August 24

Adjustable Base | 1.0 Starter
$700

Adjustable Base | 1.0 Starter
Essential Comfort Base | Affordable Head Adjustability
- Head-Up Comfort: Effortlessly raise the head of your bed for better sleep, lounging, or nighttime reading.
- Simple Wired Control: Easy-to-use wired remote for smooth, no-fuss head elevation.
- Customizable Height: Three-in-one leg segments (3", 4", 5") to match your ideal bed height.
Twin XL
$350
Full
$400
Queen
$400
King
$600
Split King
$700
In stock. Delivery by August 24

Adjustable Base | 2.0 Basic
$1,300
$1,558

Adjustable Base | 2.0 Basic
Functional Flex Base | User-Friendly
- Custom Comfort: Easily adjust head and feet settings for personalized sleep and relaxation.
- Convenient Control: Wireless remote with custom presets and flashlight for easy, personalized adjustments.
- Flexible Design: Adjustable leg heights cater to various bed heights and aesthetic preferences.
Twin XL
$779
$650
Full
$999
$800
Queen
$999
$800
King
$1,299
$1,000
Split King
$1,558
$1,300
In stock. Delivery by August 24
In stock. Delivery by August 25
100-Night Trial
Free One-Day Delivery
10 Year Warranty
- Expertly handled by our dedicated Mattress King Delivery Crew.
- Secure delivery right to your doorstep or garage, mirroring the convenience of services like FedEx, UPS, or Amazon.
Upgrade to our comprehensive service that includes everything in the Free Delivery, plus:
- Personalized delivery and setup in your preferred room.
- Safe removal of your old mattress and box spring, if required.
- Eco-friendly disposal of all packaging materials.
Exclusively Serving Oklahoma- For detailed delivery information, please visit here
- Mattress King Oklahoma City (208 S Portland Ave, Oklahoma City)
- Mattress King Stillwater (511 S Main St, Stillwater)
- Mattress King Lawton-North (1318 NW Sheridan Rd, Lawton)
Materials
Construction of Mattress:
5 Layer Design, 15" Profile
- Ultra-Conforming Ice Cool™ Knit Quilted Cover with 2" Gel-Infused Foam
- 2" Layer of Support Foam
- 2” 5-Zone Soft Contour Foam (targeted support zones)
- 800+ Individually Wrapped Coil System with Ventilated Foam Encased Edge Support
- 1" Layer of Support Foam
- Shift-Resistant Lower Cove
Basic Care: Spot clean with a mild detergent, such as upholstery cleaner. We highly recommend using a waterproof mattress protector to ensure the longevity of your mattress.
Certifications
All foams meet CertiPUR-US® standards for content, emissions, and durability, and are analyzed by independent, accredited testing laboratories.
Protected by a chemical-free and fiberglass-free fire barrier meeting 16 CFR 1633 and 16 CFR 1632 compliance
is a certification program administered by a nonprofit organization.
- Made without ozone depleters
- Made without PBDEs or the following Tris flame retardants: TCEP, TDBPP, TDCPP or TEPA
- Made without mercury, lead, and other heavy metals
- Made without formaldehyde
- Made without phthalates regulated by the Consumer Product Safety Commission
- Low VOC (Volatile Organic Compound) emissions for indoor air quality (less than 0.5 parts per million)
Warranty
10-Year Limited Warranty
If defects in materials or workmanship arise, AmericanStar will repair or replace your mattress for as long as you own it. Pair with Mattress King's 100-night risk-free trial for total peace of mind.
View full warranty details here
Where it’s made
American Craftsmanship: Made in Texas.
Expert Assistance Awaits
Get expert advice from our sleep specialists to ensure your best night’s sleep.
OR
Prefer a Personal Touch? Book Your In-Store Visit to discover mattresses and sleep essentials customized for your comfort.







Plush Comfort Meets Cooling Support
The Midnight Medium-Plush is built for sleepers who want the soft, enveloping comfort of a plush mattress with the support of a hybrid system. Cooling gel foams and an Ice Cool™ cover keep you comfortable, while the 5-Zone Contour Foam relieves pressure in key areas and promotes healthy spinal alignment. Foam-encased edge support expands your usable sleep surface and makes getting in and out of bed easier.
The Midnight Medium-Plush is built for sleepers who want the soft, enveloping comfort of a plush mattress with the support of a hybrid system. Cooling gel foams and an Ice Cool™ cover keep you comfortable, while the 5-Zone Contour Foam relieves pressure in key areas and promotes healthy spinal alignment. Foam-encased edge support expands your usable sleep surface and makes getting in and out of bed easier.

Firmness Scale
1-3
3-4
4-6
6-8
8-9
9-10
Plush
Medium-Plush
Medium
Medium-Firm
Firm
Extra-firm
Support
Support ensures a mattress keeps its shape under your body weight, providing essential spinal alignment. Ideal for partners or larger body types, it evenly distributes weight for lasting structural integrity.
Learn more
Low
Medium
High
Pressure Relief
Basic
Average
Advanced
Air Circulation
Air circulation regulates temperature for comfortable sleep. Upgraded mattresses with special fabrics and foams offer superior cooling, ensuring a more restful experience compared to standard options.
Good
Better
Best
You may also like...

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Essence | Medium
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$419.00or as low as $92/month

Nectar Classic Memory Foam | Medium-Firm
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Harmony Classic Pillow
$39.95
$49.95or as low as $9/month

Adjustable Base | 1.0 Starter
$350.00
or as low as $87/month

Premium Smooth Waterproof Mattress Protector
$45.95
or as low as $11/month

Adjustable Base | 2.0 Basic
$650.00
$779.00or as low as $162/month
Frequently Asked Questions
Will the Midnight | Medium-Plush sleep hot?
No. The Ice Cool™ quilted cover and gel-infused foams are engineered to pull heat away from the body and promote airflow. The ventilated edge support further improves breathability for a cooler night’s sleep.
How does the Midnight | Medium-Plush compare to firmer mattresses?
The Midnight offers the softest feel in its collection, while firmer options in the lineup provide more solid support. If you want plush comfort without sacrificing alignment, the Midnight is your best choice.
What is "foam encasement" and why does it matter?
Foam encasement is a border of high-density foam that runs around the perimeter of the innerspring system. It serves two key purposes: first, it provides a sturdy seating edge, making it easier to get in and out of bed. Second, it reinforces the entire structure, giving you more usable sleeping surface and preventing that "rolling-off" feeling when you sleep near the edge.
Do you offer delivery and old mattress haul-away services?
Yes, at Mattress King, we provide convenient delivery services across Oklahoma. We pride ourselves on offering fast, one-day delivery options. For those who opt for our upgraded delivery service, priced at $99, we not only deliver but also set up your new mattress and haul away your old one. In addition to this, we offer a free delivery option that includes doorstep drop-off, similar to services provided by FedEx and Amazon. This option is great for those who prefer a contactless delivery to their front porch or door. For a comprehensive understanding of our delivery services and to find the best option for your needs, please visit our delivery information page here.
Do you offer financing options?
At Mattress King, we offer a variety of financing options to fit your budget. Our financing partners include Synchrony, Affirm, and Snap Finance, each offering distinct plans to accommodate different financial needs.
Synchrony: For those with good credit, Synchrony provides a 12-month plan with 0% interest, helping you manage payments without additional costs.
Affirm: Affirm offers flexibility with interest rates ranging from 0% to 36%. They provide three payment term options, allowing you to choose a plan that best suits your budget.
Snap Finance: Ideal for those who might not have a strong credit history. Snap Finance considers other factors like a steady income and an active checking account. They offer a 100-day cash option and operate on a lease-to-own basis.
Each of these options is designed to make your mattress purchase more manageable financially. You can explore these options and apply directly to find the one that aligns with your financial situation.
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