AIRANKS — The Authoritative Rankings for AI Web Content

AIRANKS measures AI visibility: we ask AI models real product and service questions, capture the complete answers as immutable observations, and publish what they contain — which brands were mentioned, which domains were cited, and which exact pages were linked. Every domain gets an AIR score from 1–10 (a decile of visibility in the active dataset; 0 means insufficient data), with the methodology in the open.

AIR

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The Question

← all rankings / dataset COBALT

What is the best memory foam mattress

Nectar takes the top spot in 100.0% of resamples. Of 16 ranked brands, only 8 hold a position we'd call firm.

0
answers sampled
0
brands named
1,000
bootstrap resamples

Who AI Cites For This Question

25 cited pages · bars vs the leader

Best Memory Foam Mattress of 2026, Hand-Picked by Expertswww.sleepfoundation.orgsleepfoundation.org/best-mattress/…ss?utm=airanks.net320
The 6 Best Memory Foam Mattresses of 2026 - RTINGS.comwww.rtings.comrtings.com/mattress/reviews/best/m…am?utm=airanks.net206
The best memory foam mattresses 2026: Tested by experts | Tom's Guidewww.tomsguide.comtomsguide.com/best-picks/best-memo…ss?utm=airanks.net105
Best Memory Foam Mattresses 2026 - Forbes Vettedwww.forbes.comforbes.com/sites/forbes-personal-s…s/?utm=airanks.net77
Nectar Premier Memory Foam Mattress | 365-Nights Trial, Forever Warrantywww.nectarsleep.comnectarsleep.com/mattresses/premier…ss?utm=airanks.net15
The best memory foam mattress 2026: contouring comfort | TechRadarwww.techradar.comtechradar.com/best/best-memory-foa…ss?utm=airanks.net12
The best Tempur-Pedic mattress deals and sales for August 2026: Save up to 55% on luxury bedswww.tomsguide.comtomsguide.com/deals/tempur-pedic-m…ss?utm=airanks.net10

The Ranking, With Its Uncertainty

Nectar locked Nectar — ci 1.00–1.00 · n=370 · 100.0% of resamples held this rank · named in 91% of answers
Tempur-Pedic locked Tempur-Pedic — ci 0.93–0.93 · n=370 · 100.0% of resamples held this rank · named in 69% of answers
WinkBed locked WinkBed — ci 0.87–0.87 · n=370 · 99.9% of resamples held this rank · named in 47% of answers
Brooklyn Bedding locked Brooklyn Bedding — ci 0.80–0.80 · n=370 · 99.9% of resamples held this rank · named in 61% of answers
Saatva locked Saatva — ci 0.73–0.73 · n=370 · 100.0% of resamples held this rank · named in 35% of answers
Leesa firm Leesa — ci 0.60–0.67 · n=370 · 94.3% of resamples held this rank · named in 18% of answers
Zinus firm Zinus — ci 0.53–0.67 · n=370 · 84.6% of resamples held this rank · named in 19% of answers
Casper contested Casper — ci 0.33–0.60 · n=370 · 58.1% of resamples held this rank · named in 12% of answers
Nolah contested Nolah — ci 0.33–0.53 · n=370 · 46.3% of resamples held this rank · named in 12% of answers
Bear unsettled Bear — ci 0.33–0.53 · n=370 · 40.5% of resamples held this rank · named in 11% of answers
Sealy contested Sealy — ci 0.33–0.47 · n=370 · 59.3% of resamples held this rank · named in 9% of answers
Siena firm Siena — ci 0.20–0.27 · n=370 · 92.5% of resamples held this rank · named in 4% of answers
GhostBed soft GhostBed — ci 0.13–0.27 · n=370 · 77.6% of resamples held this rank · named in 2% of answers
Tuft & Needle gathering Tuft & Needle — gathering data, n=370. No bootstrap interval yet.
Purple gathering Purple — gathering data, n=370. No bootstrap interval yet.
Dreamcloud gathering Dreamcloud — gathering data, n=370. No bootstrap interval yet.

The Incomparability Lattice

what the intervals separate, not what the list claims

An edge means one brand's interval sits strictly above another's — zero overlap. No edge between two brands is not a gap in the drawing, it is the finding: their intervals overlap, and the bootstrap cannot tell them apart. Brands on the same rung are incomparable, not tied — the ranking above orders them anyway because a list has to print a total order; this diagram is the honest version.

Nectar

1.00–1.00

Tempur-Pedic

0.93–0.93

WinkBed

0.87–0.87

Brooklyn Bedding

0.80–0.80

Saatva

0.73–0.73

Leesa

0.60–0.67

Zinus

0.53–0.67

Casper

0.33–0.60

Nolah

0.33–0.53

Bear

0.33–0.53

Sealy

0.33–0.47

Siena

0.20–0.27

GhostBed

0.13–0.27