| Air-support adjustment | Six chambers: independent head, lumbar, and foot settings on each side; each zone adjusts from 1 to 100 | Independent firmness for each sleeper; one whole-side Sleep Number setting from 0 to 100 | Night Air is the stronger fit when one setting cannot satisfy your whole body—for example, you want more lift under the waist without making the shoulder area firmer. ComfortNext Lux keeps adjustment simpler because each sleeper chooses one setting for the entire side. |
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| Automatic response and controls | Two included wired LCD hand controls; settings stay where you put them; no app or sleep tracking published | Responsive Air automatically adjusts firmness; Sleep Number app control and sleep insights; optional physical smart remote | ComfortNext Lux earns its technology premium when you want the bed to respond as you move and want sleep data in an app. Night Air suits shoppers who prefer direct controls, want no app dependency, and are comfortable changing zones themselves when needed. |
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| Comfort material above the air system | 3.5-inch reversible five-zone MicroTec gel memory foam with vertical perforations | Tri-Brid foam, air, and 1.5-inch individually wrapped microcoils concentrated through the midsection | Night Air uses a deeper, reversible memory-foam layer for close contouring and lets you place the sculpted side up for a plusher feel or the flat side up for a firmer feel. ComfortNext Lux uses microcoils to add quicker response and more localized support around the hips and lower back, which benefits sleepers who dislike a slow memory-foam release when turning. |
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| Cooling approach | Ice Lux cover, gel-infused foam, and vertical perforations through the comfort layer | Temperature-balancing comfort materials; foam-and-microcoil construction creates a different airflow path | Night Air publishes three passive heat-management details and is the easier construction to audit. ComfortNext Lux may feel more responsive because of its microcoils, but Sleep Number does not publish a direct temperature comparison with Night Air. Persistent hot sleepers should compare either one with an active-cooling bed rather than treating passive cooling language as a guarantee. |
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| Profile and current Queen price | 14 inches; $4,049 current / $4,549 regular | 13 inches; $3,399.15 current / $3,999 regular in the September 10 catalog check | Night Air currently costs more, so its case rests on separate head, lumbar, and foot adjustment—not on being the budget alternative. ComfortNext Lux is the lower-priced option in this snapshot and includes automation, app features, and microcoils. Recheck both offers because promotions change frequently. |
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| Direct-store trial and warranty | 100 nights; 30-night minimum; one no-cost comfort adjustment required before an eligible return; $99 return shipping; 20-year limited warranty | 100-night trial; 10-year limited warranty with two years of full coverage and eight additional limited years | Both give you time to adjust the firmness at home. Night Air's required foam swap or addition can rescue a near-fit before a return, but the $99 return deduction and final-sale status after an exchange matter. Always use the terms of the seller named on the purchase button. |
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