For Commercial Drivers

Know your sleep health
before your next DOT physical

Sleep apnea risk comes from several things examiners consider — neck size, blood pressure, sleep symptoms, and weight among them. This free tool helps you understand your own picture, so there are no surprises at your next physical.

Free for drivers No data sent anywhere Takes 3 minutes Educational only
Check my sleep health factors Fleet operators →
📋 Recognized OSA Risk Factors in DOT Physicals
Medical examiners use a combination of factors — including BMI, neck circumference, and reported symptoms — to determine whether a driver requires further sleep evaluation. This tool checks your inputs against those same factors based on FMCSA Medical Expert Panel recommendations. It is not a medical examination and does not determine your fitness for duty.
Published research

What the research shows about drivers and sleep apnea

These are population-level findings from peer-reviewed research. They describe patterns across study populations — not predictions for any individual.

OSA prevalence in commercial drivers
Studies estimate obstructive sleep apnea affects 28–33% of commercial truck drivers — significantly higher than the general population rate of approximately 22% in adults.
Pack et al., 2006 · Tregear et al., 2009
Weight and airway risk
A 10% increase in body weight is associated with a 32% average increase in sleep apnea severity. Weight is one of the most significant and reversible contributors to sleep-disordered breathing.
Peppard et al., JAMA 2000
Neck circumference
Neck circumference at or above 17 inches in men and 16 inches in women is associated with elevated OSA risk in published research, and is one of the factors FMCSA guidance references.
FMCSA Medical Expert Panel recommendations · STOP-BANG instrument (Chung et al., Anesthesiology 2008)
For fleet operators

Offer this to your drivers

CDLRisk can be deployed as an anonymous fleet-wide sleep health screening tool. Drivers complete the assessment privately — you see anonymized aggregate data on your workforce sleep health picture.

Anonymous screening
Drivers complete assessments privately. No individual results are shared without their consent.
DOT-aware framing
Language and factors aligned with FMCSA guidance so drivers understand the context.
Ready for your brand
Deploy under your fleet brand. Drivers see your company name, nothing is sent to CDLRisk.
View fleet options →