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

Best mattress for back pain on a budget

Siena takes the top spot in 100.0% of resamples. Of 12 ranked brands, only 5 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

The 5 Best Mattresses For Back Pain of 2026 - RTINGS.comwww.rtings.comrtings.com/mattress/reviews/best/b…in?utm=airanks.net221
Siena Signature 10" Memory Foam Mattress, Medium Firm Supportwww.sienasleep.comsienasleep.com/mattress/queen?utm=airanks.net117
Nectar Classic Memory Foam Mattress | 365-Night Trial, Forever Warrantywww.nectarsleep.comnectarsleep.com/mattress/queen?utm=airanks.net97
Best Mattress for Back Pain in 2026: Expert Testedwww.sleepfoundation.orgsleepfoundation.org/best-mattress/…in?utm=airanks.net61
Original | Best Affordable Mattress - Bear Mattress – Bear Mattresswww.bearmattress.combearmattress.com/products/bear-ori…ss?utm=airanks.net49
We test beds for every budget - these 7 are the best cheap mattresses under $400 in 2026www.tomsguide.comtomsguide.com/best-picks/best-budg…ss?utm=airanks.net40
How Much Does a Casper Mattress Cost? | Caspercasper.comcasper.com/blogs/article/how-much-…st?utm=airanks.net38
CopperFlex® Essential | Best Cheap Mattress – Brooklyn Beddingbrooklynbedding.combrooklynbedding.com/products/brook…ch?utm=airanks.net34
Signature Hybrid | Best Value Mattress – Brooklyn Beddingbrooklynbedding.combrooklynbedding.com/products/signa…id?utm=airanks.net31
Brooklyn Bedding CopperFlex Mattress Review: Test Lab Ratings 2026www.sleepfoundation.orgsleepfoundation.org/mattress-revie…ew?utm=airanks.net30

The Ranking, With Its Uncertainty

Siena locked Siena — ci 1.00–1.00 · n=378 · 100.0% of resamples held this rank · named in 67% of answers
Brooklyn Bedding locked Brooklyn Bedding — ci 0.91–0.91 · n=378 · 100.0% of resamples held this rank · named in 77% of answers
Nectar firm Nectar — ci 0.73–0.82 · n=378 · 88.6% of resamples held this rank · named in 42% of answers
Casper firm Casper — ci 0.73–0.82 · n=378 · 87.2% of resamples held this rank · named in 37% of answers
Allswell firm Allswell — ci 0.55–0.64 · n=378 · 81.2% of resamples held this rank · named in 23% of answers
Dreamcloud soft Dreamcloud — ci 0.45–0.64 · n=378 · 79.1% of resamples held this rank · named in 23% of answers
Bear soft Bear — ci 0.36–0.55 · n=378 · 76.4% of resamples held this rank · named in 16% of answers
Zinus soft Zinus — ci 0.36–0.45 · n=378 · 79.7% of resamples held this rank · named in 21% of answers
Helix gathering Helix — gathering data, n=378. No bootstrap interval yet.
Nolah gathering Nolah — gathering data, n=378. No bootstrap interval yet.
Sealy gathering Sealy — gathering data, n=378. No bootstrap interval yet.
Tuft & Needle gathering Tuft & Needle — gathering data, n=378. 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.

Siena

1.00–1.00

Brooklyn Bedding

0.91–0.91

Nectar

0.73–0.82

Casper

0.73–0.82

Allswell

0.55–0.64

Dreamcloud

0.45–0.64

Bear

0.36–0.55

Zinus

0.36–0.45