For Commercial Drivers

Know your sleep health
before your next DOT physical

Weight is one of the most significant factors medical examiners evaluate for sleep apnea risk. This free tool helps you understand your personal sleep health 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 →
📋 FMCSA Sleep Apnea Guidance
The Federal Motor Carrier Safety Administration (FMCSA) recognizes obstructive sleep apnea as a condition that can impair safe driving. 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 helps you understand those same factors based on published FMCSA guidance. It is not a medical examination and does not determine your fitness for duty.

Commercial Driver Sleep Health Check

Answer the questions below to see your sleep health factors and your estimated Sleep Risk Weight. All data stays in your browser — nothing is sent anywhere.

CDLRisk™ Sleep Risk Assessment
What is your Sleep Risk Weight?
Your Sleep Risk Weight is the specific body weight at which your snoring began or got noticeably worse. For CDL drivers it's more than a sleep number — it's directly connected to the neck fat and airway obstruction that medical examiners measure at your DOT physical. Losing weight toward your Sleep Risk Weight range is one of the most effective ways to reduce your sleep apnea risk factors before your next physical.
Published research
26%
avg OSA reduction
with 10% weight loss
Peppard et al., JAMA 2000
Your measurements
Please enter a weight between 50 and 800 lbs.
Please enter a neck size between 8 and 30 inches.
Please enter a valid height (3–8 feet).
DOT Medical Card
Snoring & sleep symptoms
Medical history (select all that apply)

Your Sleep Health Summary

Educational overview based on your self-reported inputs · Not a medical assessment

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Your Sleep Risk Weight
What this means for your DOT physical
Your Sleep Risk Weight is the weight where your snoring started or got noticeably worse. For CDL drivers this number matters — neck fat from excess weight above your Sleep Risk Weight range is the #1 anatomical factor medical examiners assess for sleep apnea risk. This is an estimate based on your inputs — not a measured clinical value.
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BMI
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Neck size
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Snoring frequency
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Card duration
Important: This summary restates your self-reported inputs alongside published FMCSA guidance factors. It does not predict whether a medical examiner will require a sleep study, determine your fitness for duty, or constitute medical advice. Only a DOT-certified medical examiner can make those determinations. If you have concerns about sleep apnea, speak with your healthcare provider or medical examiner before your next physical.
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.
Davies & Stradling, Eur Respir J 1990
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.
White-label ready
Deploy under your fleet brand. Drivers see your company name, nothing is sent to CDLRisk.
View fleet options →