Name: Sierra Sleep® by Ashley® Millennium Luxury 14" Gel Memory Foam Cushion Firm Tight Top California King Mattress in a Box
Brand: Sierra Sleep
SKU: 1018824
Price: 1660 USD
Availability: InStock
Rating: 2.7 (3 reviews)

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Sierra Sleep® by Ashley® Millennium Luxury 14" Gel Memory Foam Cushion Firm Tight Top Twin XL Mattress in a Box

Charcoal-infused gel memory foam and a green tea-infused support foam base help to block moisture and odor and keep your mattress fresh. The mattress's contouring foam conforms to your body, delivering amazing support, pressure relief and comfort.

2" copper-infused gel memory foam; 1.5" charcoal-infused gel memory foam; 3" sculpted body-contouring comfort foam

Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening

Note: Purchasing mattress and foundation from two different brands may void warranty; see warranty for details

Home is heritage—and heritage is uncompromising. This means the quality construction, unique stylings, and exceptional comfort of home furnishings from Signature Design by Ashley® always match the integrity of your home and family. The Signature Design by Ashley® line takes pride in its furniture—inspired by the American home for more than 70 years and enriched by you.

*Mattress only. All other items not included. Color and saturation may vary due to lighting and monitor/phone screen settings.

When it comes to your comfort, discover the luxury of this twin-xl gel memory foam mattress. Cooling gel copper-infused memory foam and two layers of temperature-regulating material keep you at a comfortable temperature all night long. 

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Mattress Delivery What To Expect with Captions

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Beautyrest® baselogic™ Bronze California King Adjustable Base

Upgrade your sleep setup with baselogic™ Bronze, designed to deliver reliable support and everyday convenience. With adjustable head positioning, a wired remote, zero-clearance design, folding functionality, and sturdy 9-inch legs, it offers practical comfort for a better sleep experience.

Beautyrest® baselogic™ Gold California King Adjustable Base

Prioritize relaxation with the enhanced features of the baselogic™ Gold adjustable base. With its durable construction and thoughtful design, this adjustable base offers stability, ease of use, and long-lasting performance.

Beautyrest® baselogic™ Pearl California King Adjustable Base

baselogic™, from the makers of Serta® and Beautyrest®, offers all-in-one bed and lounge solutions to help promote better rest and deeper sleep. Featuring an adjustable lumbar support bar for added lower back care. With head and foot adjustability, underbed lighting, and USB A & C ports for easy device charging, this base helps make unwinding more convenient.

Beautyrest® baselogic™ Platinum California King Adjustable Base

Beautyrest® baselogic™ Split King adjustable base – Reimagine your rest with the premium features and advanced customization of the baselogic™ Platinum adjustable base. Enjoy effortless head and foot adjustability, enhanced relaxation, personalized comfort, improved circulation, and dependable performance designed to elevate sleep, lounging, and everyday wellness at home living.

Beautyrest® baselogic™ Silver California King Adjustable Base

Upgrade your sleep experience with the baselogic® Silver Adjustable Base, offering customizable head and foot positioning, convenient wireless control, and relaxing preset options. Its foldable, zero-clearance design and adjustable legs provide versatile setup, while advanced adjustability helps create a more comfortable sleep and lounging experience.

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Appliance Haul-Away

Haul-Away Old Product ($40 Fee Per Item)

This fee applies per item we remove from your home. Includes removal and proper recycling of your old furniture, appliance, or mattress.

Sierra Sleep® by Ashley® Millennium Luxury 14" Gel Memory Foam Cushion Firm Tight Top California King Mattress in a Box

When it comes to your comfort, discover the luxury of this california king gel memory foam mattress. Cooling gel copper-infused memory foam and two layers of temperature-regulating material keep you at a comfortable temperature all night long. 