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 side sleepers with lower back pain

Helix takes the top spot in 100.0% of resamples. Of 15 ranked brands, only 7 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.net220
The 5 Best Mattresses For Back Pain of 2026 - RTINGS.comwww.rtings.comrtings.com/mattress/reviews/best/b…in?utm=airanks.net188
Saatva Rx - A Mattress for Back + Joint Issues | Saatvawww.saatva.comsaatva.com/mattresses/saatva-rx?utm=airanks.net132
Back pain: Symptom When to see a doctor - Mayo Clinicwww.mayoclinic.orgmayoclinic.org/symptoms/back-pain/…78?utm=airanks.net100
7 Best Mattresses for Side Sleepers with Back Pain in 2026www.healthline.comhealthline.com/health/healthy-slee…er?utm=airanks.net94
Elite Hybrid | Best Mattress for Back Pain - Bear Mattress – Bear Mattresswww.bearmattress.combearmattress.com/products/elite-hy…ss?utm=airanks.net92
Shop the Helix Midnight Luxe | Premium Mattress with Pressure Relief - Helix Sleephelixsleep.comhelixsleep.com/products/midnight-luxe?utm=airanks.net64
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.net53
Best Mattress for Side Sleepers 2026: 6 Expert-Tested Pickswww.goodhousekeeping.comgoodhousekeeping.com/home-products…s/?utm=airanks.net53

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 locked Bear — ci 0.93–0.93 · n=374 · 100.0% of resamples held this rank · named in 61% of answers
Saatva locked Saatva — ci 0.86–0.86 · n=374 · 100.0% of resamples held this rank · named in 67% of answers
Nolah locked Nolah — ci 0.79–0.79 · n=374 · 100.0% of resamples held this rank · named in 29% of answers
WinkBed locked WinkBed — ci 0.71–0.71 · n=374 · 99.3% of resamples held this rank · named in 15% of answers
Brooklyn Bedding locked Brooklyn Bedding — ci 0.64–0.64 · n=374 · 98.9% of resamples held this rank · named in 10% of answers
Dreamcloud firm Dreamcloud — ci 0.43–0.57 · n=374 · 87.0% of resamples held this rank · named in 6% of answers
Tempur-Pedic unsettled Tempur-Pedic — ci 0.21–0.57 · n=374 · 32.8% of resamples held this rank · named in 4% of answers
Nectar unsettled Nectar — ci 0.21–0.57 · n=374 · 29.2% of resamples held this rank · named in 4% of answers
Purple unsettled Purple — ci 0.21–0.57 · n=374 · 23.7% of resamples held this rank · named in 3% of answers
Leesa unsettled Leesa — ci 0.21–0.50 · n=374 · 27.6% of resamples held this rank · named in 2% of answers
Casper contested Casper — ci 0.14–0.43 · n=374 · 59.8% of resamples held this rank · named in 2% of answers
Tuft & Needle gathering Tuft & Needle — gathering data, n=374. No bootstrap interval yet.
Sleep Number gathering Sleep Number — gathering data, n=374. No bootstrap interval yet.
Siena gathering Siena — 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

0.93–0.93

Saatva

0.86–0.86

Nolah

0.79–0.79

WinkBed

0.71–0.71

Brooklyn Bedding

0.64–0.64

Dreamcloud

0.43–0.57

Tempur-Pedic

0.21–0.57

Nectar

0.21–0.57

Purple

0.21–0.57

Leesa

0.21–0.50

Casper

0.14–0.43