12″ Sierra Gel Hybrid Medium Mattress
Price range: $410.00 through $749.00
Fresh, cool, and supportive — the Sierra is designed to make great sleep easy. With a 12” hybrid profile, Sierra blends the refreshing comfort of swirled CoolGel memory foam with the reliable support of individually wrapped coils, creating a balanced feel that works for a wide variety of sleepers.
Right beneath the breathable grey waterfall cover, a thick layer of CoolGel memory foam cushions your body and relieves pressure while drawing away excess heat for a cooler, more refreshing night’s rest. A transition layer of high-density comfort foam smooths the shift into the pocketed coil support system, which adapts to your body, isolates motion, and provides edge-to-edge stability so you can stretch out comfortably.
The result is a mattress that feels airy, supportive, and effortless — bringing you cooling comfort and dependable support at a price that makes better sleep more accessible than ever.
- 12” Hybrid Design – Balanced comfort + support
- Pro Gel™ Memory Foam – Cooling pressure relief with a fresh, buoyant feel
- Pocketed Coil System – Durable stability + reduced motion transfer
- Breathable Waterfall Cover – Soft, modern, and built for airflow
- Everyday Value – Premium comfort without the premium price
PayTomorrow® pre-approval here applies for our online store only. To shop in store, please apply on our location pages found here:
Product shows out of stock?
Give us a call and we can share available in-stock options that are comperable to your needs. We love providing free sleep consultations for our customers and helping you get the best sleep at the best price. That’s “Support You Can Feel.”
*(614) 647-9914
DELIVERY OPTIONS: bed-in-box: Mattress Ships in Box (Nationwide Shipping & Local Central OH Delivery Available)
The stock count shown here is a combination of availability company wide. For accurate inventory at the store nearest you, please call or text us.
*Products that show a special order option are not currently in stock for same/next day delivery but typically arrive between 10-14 business days from the date you place your order.
Fresh, cool, and supportive — the Sierra is designed to make great sleep easy. With a 12” hybrid profile, Sierra blends the refreshing comfort of swirled CoolGel memory foam with the reliable support of individually wrapped coils, creating a balanced feel that works for a wide variety of sleepers.
Right beneath the breathable grey waterfall cover, a thick layer of CoolGel memory foam cushions your body and relieves pressure while drawing away excess heat for a cooler, more refreshing night’s rest. A transition layer of high-density comfort foam smooths the shift into the pocketed coil support system, which adapts to your body, isolates motion, and provides edge-to-edge stability so you can stretch out comfortably.
The result is a mattress that feels airy, supportive, and effortless — bringing you cooling comfort and dependable support at a price that makes better sleep more accessible than ever.
- 12” Hybrid Design – Balanced comfort + support
- Pro Gel™ Memory Foam – Cooling pressure relief with a fresh, buoyant feel
- Pocketed Coil System – Durable stability + reduced motion transfer
- Breathable Waterfall Cover – Soft, modern, and built for airflow
- Everyday Value – Premium comfort without the premium price
Additional information
| Firmness | Firm, Medium |
|---|---|
| Size | California King, Full, King, Queen, Twin, Twin XL |
SHipping
Delivery Options & Guidelines
Free Shipping Option*
Certain products are eligible for free shipping via FedEx. These include:
- AirflowMax™ Mattresses
- Zero Gravity & Omni Adjustable Bases
Standard Delivery
Our Standard Delivery is available to most of Central Ohio and includes dropping your product(s) off at your door or inside your garage.
Rates start at $55 and are determined by your zip code.
White Glove Delivery
Our White Glove service includes set up of your mattress and foundation in a room of your choice. Please ensure the path and room are clear.
Rates start at $100 and are determined by your zip code.
Free In-Store Pickup
Save on delivery fees by scheduling pickup of your items in-store.
Need a U-Haul? Rentals are available at our Cleveland Avenue location.
We Work Hard to Bring You Great Sleep
Mattresses, Foundations, Adjustable Bases, Bedding and more all come together with our experience of over 45 years in business.
Mack Mattress Brand
Established in 1974, we’ve learned a thing or two about what’s important for a great night’s sleep. Discover refreshing sleep without breaking your budget.
Name Brand Clearance
Mack Mattress Outlet offers the best in quality from nationally known name brands like Beautyrest and Serta at 50%-80% off the prices you’ll find a major retailers everyday.
Our Locations
Cleveland Avenue
Oakland Park & Cleveland Avenue
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Sawmill Road
N of 270, S of Hard Road
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Westerville
Schrock & S State Street
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“Support You Can Feel”™
Family owned and operated since 1974, Mack Mattress has had the mission of brining you quality sleep at affordable prices.
When you don’t seep well, it affects the way you feel, work, play, and look. When you sleep better, you do EVERYTHING better. That’s why at Mack Mattress, we bring you “Support You Can Feel”.
- Our own Mack Mattress brand that blends top line of sleep technology with affordable price points.
- Specials on top quality mattresses everyday.
- Standard foundations and adjustable bases for customizable comfort.
- Cozy and affordable bedding accessories for a unique sleep environment just for you.
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