Sierra Sleep Align Luxury Gel Memory Foam Mattress – The Double Infusion
Price range: $426.99 through $677.99
Copper and charcoal share the top of this build – the Align Luxury Gel Memory Foam, formerly sold as Millennium, stacks copper-infused and charcoal-infused gel memory foams with two phase-change-material layers and sculpted contouring foam over a green tea-infused base.
The infusions are working parts: PCM layers manage temperature swings, the sculpted foam shapes pressure relief, and the all-foam build keeps everything silent and motion-free. It is Sierra Sleep’s foam flagship, priced a tier below what this layer count usually costs.
Foam this engineered deserves a measured test – the Dream Catcher pressure-mapping test, powered by X-SensorTech – about 7 minutes, 1,600+ sensors – runs daily at The Mattress Store inside our Northfield showroom.
Questions & Answers
Is this the same mattress as the Millennium Luxury Gel Memory Foam?
Yes – Align is the current name for the line formerly sold as Millennium. Construction unchanged.
What sizes and prices does it come in?
Twin XL $959.99, Queen $1,189.99, King $1,519.99 – with California King also available; ask our team for current pricing.
What do the copper and charcoal infusions do?
They work alongside two phase-change-material layers to manage heat and freshness – cooling and airflow engineered into the foam itself.
How does it feel?
A contouring luxury-foam feel – sculpted pressure relief with a supported landing, suited to side and combination sleepers.
Does it work with an adjustable base?
Yes – the all-foam build flexes cleanly with adjustable bases.
Frequently Asked Questions
What sizes does this come in?
The size options on this page are the sizes we carry for this model – pick your size above. If you need a size you don’t see, ask our team about special ordering.
What warranty do Ashley Sleep and Sierra Sleep mattresses carry?
Most carry a 10-year non-prorated warranty – check the product details for the specific model, or ask our team.
How do I know which firmness is right for me?
Side sleepers usually do best with soft to medium feels, back and stomach sleepers with medium-firm to firm. The surest way is the 7-minute Dream Catcher pressure-mapping test at our Northfield showroom – it shows your pressure points on screen instead of guessing.
Can I see this before I buy?
You can see this piece or comparable pieces in our two-acre Northfield showroom at 200 Tilton Road – a 4th-generation family store serving South Jersey since 1912.
Do you deliver to the Shore towns?
Yes – we deliver throughout South Jersey, from Atlantic City down to Cape May, including Ocean City, Avalon, and Wildwood. White-glove delivery is available (delivery fee applies), or you can pick up at the store.
| Size |
California King ,King ,Queen ,Twin XL |
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