Plank Firm

From $599.25

  • Plank Firm - front view
  • Plank Firm - angle view
  • Plank Firm - detail view
  • Plank Firm - side view
  • Plank Firm - lifestyle view
Size
$599.25
$599.25 $799.00
Free Nationwide Delivery
Shipping calculated at checkout.

Ultra-Firm All-Foam Construction for Maximum Support

Ships in 3-7 Business Days

Product Features:

  • Ultra-Firm All-Foam: Maximum firmness without coils for consistent support
  • Flippable Design: Firm and extra-firm sides to choose your preferred level
  • Spinal Support: Promotes proper alignment for back and stomach sleepers
  • High-Density Foam: Durable construction for long-lasting support
  • No Motion Transfer: All-foam construction eliminates partner disturbance
  • CertiPUR-USAr Certified: Safe, high-quality foam materials

Perfect For:

  • Back and stomach sleepers needing firm support
  • Those who prefer ultra-firm feel
  • Heavier individuals requiring maximum support
  • People with back issues needing spinal alignment

Specifications

Sleep Trial

120 nights risk-free

Shipping

Free nationwide shipping

Exchange

Risk-free exchange during trial

Showroom

Try in person - Glendale, CA

Materials

Our mattresses are crafted with premium materials designed for comfort and durability. Depending on the model, you may find layers of cooling gel-infused memory foam, natural latex, individually wrapped coils, and breathable organic cotton covers. Each material is carefully selected to provide optimal support, pressure relief, and temperature regulation throughout the night.

Dimensions

Mattress dimensions vary by size. Twin: 38" x 75", Twin XL: 38" x 80", Full: 54" x 75", Queen: 60" x 80", King: 76" x 80", Cal King: 72" x 84". Height and weight vary by model. Check the individual product listing for specific measurements. All our mattresses are designed to fit standard bed frames and foundations.

Care Instructions

To keep your mattress in top condition, rotate it 180 degrees every 3-6 months to ensure even wear. Use a mattress protector to guard against spills and stains. For spot cleaning, gently blot with a mild detergent and warm water. Avoid soaking the mattress. Allow adequate ventilation by occasionally removing bedding to air out the mattress. Do not fold or bend the mattress, and always use a supportive foundation or bed frame.
Plank Firm

$599.25
  • FREE NATIONWIDE SHIPPING
    Delivered to your door at no cost
  • 120-NIGHT SLEEP TRIAL
    Love it or return it, hassle-free
  • FACTORY DIRECT PRICING
    Cut out the middleman and save
  • EXPERT SLEEP SUPPORT
    Real humans, real guidance

Why You'll Love It

  • 120-Night Sleep Trial

    Take up to 120 nights to decide if your mattress is right for you. Not the perfect fit? Exchange it for a different model, hassle-free.

  • Free Delivery & Setup

    Every mattress ships free with white-glove delivery. We set up your new bed, remove packaging, and haul away your old mattress.

  • Factory-Direct Savings

    We partner directly with manufacturers to cut out the middleman. You get premium mattresses from top brands at prices retail stores can't match.

  • Try Before You Buy

    Visit our Glendale showroom to test mattresses in person. Feel the firmness, compare materials, and find your match with expert guidance.

How Does It Feel?

At Jewel City Mattress, we carry mattresses across the full firmness spectrum so you can find your perfect match:

◼ Plush (Soft, 3-4) — Deep cushioning that cradles your body. Ideal for side sleepers who need pressure relief at the shoulders and hips.

◼ Medium (5-6) — The most popular choice. Balances comfort and support for combination sleepers and couples.

◼ Firm (7-8) — Solid support with minimal sinking. Great for back and stomach sleepers who need spinal alignment.

◼ Extra Firm (9-10) — Maximum support for those who prefer sleeping "on top" of the mattress rather than sinking in.

Not sure? Visit our Glendale showroom to try different firmness levels in person, or call our sleep experts at (747) 699-0077 for personalized recommendations.

Product Specifications

📐 Dimensions & Sizes

Profile Height: 11 inches

Weight: 70 lbs (Queen)

SizeDimensions
Twin38" x 75"
Twin XL38" x 80"
Full54" x 75"
Queen60" x 80"
King76" x 80"
CA King72" x 84"
🔧 Materials & Construction
  • TitanFlex™ Foam
  • High-Density Support Foam
  • Firm Quilted Top
✅ Certifications
  • CertiPUR-US
💡 Care Instructions
  • Rotate every 3-6 months
  • Use a mattress protector
  • Spot clean only
🛡️ Warranty

10-Year Limited Warranty

⭐ Key Features
  • Flippable design - firm and extra firm sides
  • Flat sleeping surface
  • Ideal for stomach and back sleepers
  • No pressure point sinkage

What firmness level should I choose?

Side sleepers: Plush to Medium for pressure relief.
Back sleepers: Medium to Medium Firm for spinal alignment.
Stomach sleepers: Firm to Extra Firm to prevent hips from sinking.
Combination sleepers: Medium works best.
Heavier individuals (250+ lbs): Firm or Extra Firm for proper support.

Visit our Glendale showroom to try different firmness levels.

How long does shipping take?

Most mattresses ship within 3-7 business days. Local deliveries in the LA area typically arrive within 5 business days. All mattresses include free white-glove delivery with setup and old mattress removal.

What's your return policy?

We offer a 120-night sleep trial. We recommend sleeping on it for at least 30 nights to adjust. If it is not the right fit, call (747) 699-0077 to arrange a hassle-free exchange.

Can I use this with an adjustable base?

Yes! All of our mattresses are compatible with adjustable bases. Memory foam, hybrid, and latex mattresses work especially well. Check out our adjustable base collection for the perfect pairing.

How do I care for my mattress?

Rotate 180 degrees every 3-6 months. Use a mattress protector from day one. Spot clean with mild detergent only. Do not fold or bend. Use a proper foundation or platform frame for support.

Do you have a showroom I can visit?

Yes! Visit us at 201 North Central Ave, Glendale, CA 91203. Open Monday-Saturday 10 AM - 8 PM, Sunday 11 AM - 5 PM. No appointment needed. Call (747) 699-0077 for directions.

What's included with my purchase?

Every mattress purchase includes the mattress, free white-glove delivery and setup, old mattress removal, a 120-night sleep trial, and manufacturer warranty coverage (typically 10-25 years).

How does the 120-night trial work?

From delivery day, you have 120 nights to decide. We recommend at least 30 nights for your body to adjust. If it is not right, call (747) 699-0077 and we will help you select and exchange for a different mattress.
  • 120-NIGHT TRIAL
    Sleep on it, risk-free
  • FREE SHIPPING
    On every order
  • EXPERT HELP
    Talk to a sleep expert
  • CALL US
    (747) 699-0077