Prime Glencastle 13.5" Cushion Firm Innerspring Mattress

Free shipping & free white glove service on all mattress orders. Each order is handcrafted & custom made just for you. Ready to ship within 10 business days.

Comfort Level: Cushion Firm

Designed with the perfect medium support.

Choose your sleep options:

Mattress Set (Includes BedJet Adjustable Base)

$1,299.00 USD

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Shipping calculated at checkout.

10-Year Limited Warranty
100-Night Trial
Free shipping

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EXCEPTIONAL QUALITY AND VALUE

Outstanding comfort, exceptional value. Kingsdown Prime mattresses deliver a level of quality and features not found in other mattresses in this price range making Prime an exceptional value.

Gel, Copper, Silver, Graphite
Tri-Tech Gel Infused Memory Foam combines the cushioning benefits of gel with the antimicrobial and cooling properties of graphite, silver and copper for cooler, fresher sleep. This responsive layer alleviates pressure points along the body, particularly in the shoulder and hip regions.
Airflow Latex
Airflow Latex delivers responsive support and comfort. This breathable layer uses airflow channels to help disperse body heat, while its pressure-relieving ability helps the body rest in one position longer, resulting in longer, deeper sleep cycles.
Comfort Flex Gel Foam
Thick layers of firm Comfort Flex Gel Foam provide supportive comfort from head to toe

Handcrafted since 1904

With more than a century of experience, our commitment to building the finest innovative mattresses for healthy, restorative sleep has never wavered.

Wrapped Coils

Hundreds of innerspring coils are individually wrapped to provide personalized support while mitigating motion transfer. Adjustable base friendly.

Full Body Surround® Edge Support

High-density foam on all sides to provide a 100% usable edge-to-edge sleeping surface.

CertiPUR-US® Certified Foam

All Kingsdown products feature CertiPUR-US®Certified Foam.

Ultra Plush
Plush
Cushion Firm
Firm

Blue - Cushion Firm

Support Level = Blue. Cushion firm is the perfect mid-level between our plush and firm. Support forward feel with some pressure relief.

Our color-codes reflect the support calcualated by our bedMATCH System on every mattress made.

FIND THE BED MATCHED TO YOU.

Stop guessing and take our quick science based quiz. Join over 25 million customers who have confidently shopped for the right mattress support.

TAKE THE bedMATCH QUIZ

Consistency Through Science

Handcrafted in the USA, only Kingsdown tests and certifies every mattress with the Sleep to Live Institute to deliver proper postural support.

Made to Order + Free Premium White Glove Delivery

Ready to ship in 10 business days. Free white glove service on all mattress orders*. White Glove Service includes transportation and mattress delivery to the room of your choice.

All your questions answered

Product specifications

Type: Innerspring Mattress
Support Level: Cushion Firm
Mattress Height: 13.5"
bedMATCH: BLUE
Coil Count:
Twin - 490 coils
Twin XL - 526 coils
Full - 690 coils
Queen - 818 coils
King - 1040 coils
California King - 1034 coils

Warranty

Warranty: 10 years

Shipping, and Return Policy

Premium White Glove Service:
Each order is custom made and handcrafted just for you. Our premium white glove service agents will contact you directly to arrange factory-direct shipping to your home. A certified, professional team will arrive with your new sleep set, and you’ll enjoy the superior service that you deserve and expect from Kingsdown.
Premium white glove delivery service varies depending on scheduling.
FREE WHITE GLOVE SERVICE on all hybrid mattress orders.*
*Ready to ship in 10 business days. White Glove Service includes transportation and mattress delivery to the room of your choice. Standard service does not include removal of existing mattress but may be added for an additional fee. Due to mandated restrictions, we are unable to offer in-home set ups in some cities and states. Shipping is only available to the contiguous U.S., with the following exclusions: Connecticut and Rhode Island. Alaska and Hawaii also excluded. Additionally, White Glove Service is only for the purchase of your Kingsdown mattress. If your purchase includes a BedJet PowerLayer adjustable base, this item will ship separately and is NOT included in the Free White Glove Service offer. The BedJet PowerLayer is self-set up and instructions are available.

100-NIGHT SLEEP TRIAL
We are proud to offer a 100-night sleep trial for all mattresses sold on https://kingsdownmattress.com/ . If you’re not completely satisfied, you may exchange or return your mattress within 100 calendar days, from the date of delivery. Mattresses purchased after January 1, 2025 will be subject to a $150 restocking fee. To qualify for this offer, all mattresses must be clean and undamaged. Damage includes, but is not limited to: stained fabrics, punctures, rips, tears, abrasions or burns. The 100-night sleep trial is only valid on mattresses and is limited to one exchange. Offer not available on foundations, pillows, sheets or mattress protectors.

Check out what people are saying

great mattress!!
i bought this mattress about a month ago and i love it!! so glad that i purchased this kingstown mattress. i sleep so much better than i used to. 10/10 would recommend. -yourmom427 fayetteville, north carolina

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Prime Glencastle 13.5" Cushion Firm Innerspring Mattress