Does the ComfortNext Ultra come with a base?

No. It ships as the mattress only, and the adjustable base is a separate purchase.

Can two sleepers set different firmness?

Yes. The air chamber adjusts firmness, and each side can be set to its own level.

Sleep Number builds cooling material into the mattress and designs it for maximum airflow, with more cooling material than its other models.

How does it differ from other ComfortNext models?

It is the top of the line, with the Tri-Brid three-layer design and the most built-in cooling and airflow in the range.

The king-size mattress only. The base and any pump or remote setup for adjustment are not included with the mattress.

What do buyers say about the Sleep Number King ComfortNext Ultra Mattress?

Rated 5 out of 5 from 383 ratings. Buyers like: Superior pressure relief and support personalized to you; Adjustable firmness; Cooling comfort.

Sleep Number King ComfortNext Ultra Mattress

Best price now

$4,559.20at Sleep NumberChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Sleep Number

Sleep Number King ComfortNext Ultra Mattress

Best price now

$4,559.20at Sleep NumberChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Sleep Number

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $4,559.20 at Sleep Number on Nov 9.

Our take on the Sleep Number King ComfortNext Ultra Mattress

The Sleep Number ComfortNext Ultra is a king-size air-adjustable mattress. Its Tri-Brid design combines three support layers with an air chamber, so each side can be set to its own firmness. Sleep Number adds more built-in cooling material and airflow than its other models, aimed at hot sleepers and people with hip, shoulder, knee or lower-back pressure. It is the top of the ComfortNext line, and the mattress ships alone, so the adjustable base is a separate purchase.

Best forCouples who want different firmness on each sideHot sleepers who want a cooler surfacePeople with hip, shoulder or lower-back pressureShoppers who want to change firmness over time

Pros

Firmness adjusts per side through the air chamber
Tri-Brid design layers foam and support over the air core
More built-in cooling material and airflow than other Sleep Number models
Targets pressure at hips, shoulders, knees and lower back
King size gives each sleeper a full half

Cons

Mattress only; the adjustable base is sold separately
Needs power and a pump to adjust firmness
Air-chamber feel differs from all-foam or innerspring beds
Top-tier model in the line, so it carries the highest feature set

Sleep Number King ComfortNext Ultra Mattress prices at every store

Sleep NumberNew
In stock
$4,559.20Checked Nov 9
Visit Sleep Number

Sleep Number King ComfortNext Ultra Mattress price history

Lowest price we've seen: $4,559.20 on Nov 9 at Sleep Number. Tracked across 1 store since Nov 9.

What reviewers say

5 / 5383 ratings

Owners rate it very highly, with 383 ratings averaging 5 out of 5. They single out pressure relief, support and the ability to set firmness to their own preference, and many mention the cooling.

What people mention

Pressure reliefPraisedOwners say it relieves pressure at the hips, shoulders, knees and lower back.
Adjustable firmnessPraisedBuyers like being able to set firmness to their own preference.
CoolingPraisedSleepers mention the built-in cooling materials and airflow keep the surface comfortable.
SupportPraisedReviewers describe the three-layer Tri-Brid construction as supportive.

From Sleep Number

Tri-Brid™ design
Adjustable firmness
Cooling comfort
Pressure relief
Maximum relief for hips, shoulders, knees and lower back
175% more built-in cooling materials and maximum airflow

Sizes: King 76" x 80"
Sizing: King size measures 76" x 80"
Guarantee: 5-Year Enhanced Coverage with accidental & defect coverage, powered by Extend®
In the box: Mattress only (base not included)

About the Sleep Number King ComfortNext Ultra Mattress

The Sleep Number King ComfortNext Ultra Mattress uses a Tri-Brid design with adjustable firmness. It is built for pressure relief, with support aimed at the hips, shoulders, knees and lower back.

It has 175% more built-in cooling materials and maximum airflow for cooling comfort. The mattress is sold on its own, and the base is not included.

Size: King, 76" x 80"
Style: Adjustable bed mattress
Design: Tri-Brid
Firmness: Adjustable
Cooling: 175% more built-in cooling materials and maximum airflow
Pressure relief: Hips, shoulders, knees and lower back
In the box: Mattress only (base not included)

What buyers say

Buyers like

Superior pressure relief and support personalized to you
Adjustable firmness
Cooling comfort
Tri-Brid™ design with three supportive layers

Specifications

Size: King
Specialty Style: Adjustable Bed

Questions and answers

Does the ComfortNext Ultra come with a base?: No. It ships as the mattress only, and the adjustable base is a separate purchase.
Can two sleepers set different firmness?: Yes. The air chamber adjusts firmness, and each side can be set to its own level.
How is it cooled?: Sleep Number builds cooling material into the mattress and designs it for maximum airflow, with more cooling material than its other models.
How does it differ from other ComfortNext models?: It is the top of the line, with the Tri-Brid three-layer design and the most built-in cooling and airflow in the range.
What is in the box?: The king-size mattress only. The base and any pump or remote setup for adjustment are not included with the mattress.
Where is the Sleep Number King ComfortNext Ultra Mattress cheapest?: At Sleep Number, for $4,559.20, as of our latest check.
What do buyers say about the Sleep Number King ComfortNext Ultra Mattress?: Rated 5 out of 5 from 383 ratings. Buyers like: Superior pressure relief and support personalized to you; Adjustable firmness; Cooling comfort.