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

PHRASE

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The Question

← all rankings / dataset COBALT

Best mattress for side sleepers and back pain

Helix takes the top spot in 100.0% of resamples. Of 15 ranked brands, only 4 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 Best Mattress for Side Sleepers in 2026: Expert Testedwww.sleepfoundation.orgsleepfoundation.org/best-mattress/…rs?utm=airanks.net221
The 5 Best Mattresses For Back Pain of 2026 - RTINGS.comwww.rtings.comrtings.com/mattress/reviews/best/b…in?utm=airanks.net196
Best Mattress for Back Pain in 2026: Expert Testedwww.sleepfoundation.orgsleepfoundation.org/best-mattress/…in?utm=airanks.net165
Saatva Rx - A Mattress for Back + Joint Issues | Saatvawww.saatva.comsaatva.com/mattresses/saatva-rx?utm=airanks.net101
7 Best Mattresses for Side Sleepers with Back Pain in 2026www.healthline.comhealthline.com/health/healthy-slee…er?utm=airanks.net73
Elite Hybrid | Best Mattress for Back Pain - Bear Mattress – Bear Mattresswww.bearmattress.combearmattress.com/products/elite-hy…ss?utm=airanks.net60
The 6 Best Mattresses For Side Sleepers of 2026 - RTINGS.comwww.rtings.comrtings.com/mattress/reviews/best/s…rs?utm=airanks.net56
Back pain: Symptom When to see a doctor - Mayo Clinicwww.mayoclinic.orgmayoclinic.org/symptoms/back-pain/…78?utm=airanks.net54
Effect of firmness of mattress on chronic non-specific low-back pain: randomised, double-blind, controlled, multicentre trial - PubMedpubmed.ncbi.nlm.nih.govpubmed.ncbi.nlm.nih.gov/14630439/?utm=airanks.net43
Best Mattress for Side Sleepers 2026: 6 Expert-Tested Pickswww.goodhousekeeping.comgoodhousekeeping.com/home-products…s/?utm=airanks.net42

The Ranking, With Its Uncertainty

Helix locked Helix — ci 1.00–1.00 · n=374 · 100.0% of resamples held this rank · named in 99% of answers
Bear firm Bear — ci 0.86–0.93 · n=374 · 80.7% of resamples held this rank · named in 70% of answers
Saatva firm Saatva — ci 0.86–0.93 · n=374 · 80.7% of resamples held this rank · named in 79% of answers
Nolah contested Nolah — ci 0.71–0.79 · n=374 · 51.8% of resamples held this rank · named in 29% of answers
WinkBed contested WinkBed — ci 0.71–0.79 · n=374 · 51.8% of resamples held this rank · named in 23% of answers
Dreamcloud firm Dreamcloud — ci 0.57–0.64 · n=374 · 83.5% of resamples held this rank · named in 12% of answers
Brooklyn Bedding soft Brooklyn Bedding — ci 0.50–0.64 · n=374 · 72.4% of resamples held this rank · named in 9% of answers
Purple contested Purple — ci 0.29–0.57 · n=374 · 47.1% of resamples held this rank · named in 6% of answers
Tempur-Pedic unsettled Tempur-Pedic — ci 0.29–0.57 · n=374 · 40.1% of resamples held this rank · named in 6% of answers
Nectar contested Nectar — ci 0.21–0.50 · n=374 · 51.8% of resamples held this rank · named in 5% of answers
Casper contested Casper — ci 0.14–0.43 · n=374 · 50.8% of resamples held this rank · named in 4% of answers
Sleep Number unsettled Sleep Number — ci 0.14–0.29 · n=374 · 42.5% of resamples held this rank · named in 3% of answers
Leesa contested Leesa — ci 0.14–0.29 · n=374 · 52.5% of resamples held this rank · named in 2% of answers
Sealy gathering Sealy — gathering data, n=374. No bootstrap interval yet.
Tuft & Needle gathering Tuft & Needle — gathering data, n=374. 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.

Helix

1.00–1.00

Bear

0.86–0.93

Saatva

0.86–0.93

Nolah

0.71–0.79

WinkBed

0.71–0.79

Dreamcloud

0.57–0.64

Brooklyn Bedding

0.50–0.64

Purple

0.29–0.57

Tempur-Pedic

0.29–0.57

Nectar

0.21–0.50

Casper

0.14–0.43

Sleep Number

0.14–0.29

Leesa

0.14–0.29

13 of 15 brands measured · 21 dominance edges · 6 rungs · 23 pairs the data does not separate