Contact: Salimetrics (USA)
Join a growing network of sleep medicine physicians, psychiatrists, and neurologists using DLMO testing to objectively measure circadian phase and guide precision chronotherapy.
CLIA-Certified Laboratory
HIPAA Results Portal
At-Home Patient Collection
The Clinical Case
See Your Patients’ Biological Clocks — Not Just Their Symptoms.
Circadian rhythm sleep-wake disorders (CRSWDs), including delayed sleep phase disorder, advanced sleep phase disorder, and non-24-hour disorder, are defined by biological timing, not subjective sleep complaints alone.
DLMO (Dim Light Melatonin Onset) is the universally accepted gold standard for objectively identifying circadian phase. A single salivary profile maps the precise onset of nocturnal melatonin rise, anchoring your entire treatment timeline.
With an objective phase marker, you can time light therapy, exogenous melatonin, and behavioral interventions with scientific precision rather than educated estimates.
Why Test DLMO?
Precision Sleep Medicine Starts Here.
DLMO testing adds a measurable, biological dimension to your practice to
improve therapeutic accuracy and treatment outcomes.
Precision Chronotherapy
Align light therapy, melatonin supplementation, and behavioral interventions to the patient’s exact biological clock timing — not guesswork.
Objective BioFeedback
Identify delayed sleep phases, advanced sleep phases, and moving sleep phases with an objective biomarker. Phase shifts are physiological and now you can measure them.
Mental Health Integration
Circadian misalignment is increasingly linked to mood dysregulation, depression, and bipolar disorder. Add a biological lens to psychiatric workups.
Fully Patient-Side Collection
Patients collect saliva samples at home with no lab visits required. We handle the logistics — you receive structured results through our HIPAA-compliant portal.
Differentiated Practice
Offer a tool most practices don’t have. Objective circadian data demonstrates value to referring physicians and patients seeking precision care.
Insurance-Reimbursable
DLMO testing may qualify for insurance coverage. We provide resources to support reimbursement including documentation and patient insurance forms.
25+
Years of Salivary Research
CLIA
Certified
Laboratory
6-9 samples
Per At-Home
Collection
The Provider Workflow
From Referral to Results — in Four Steps.
Register Your Practice
Complete the short provider registration form below. Our team will onboard you and set up your portal access.
Refer Your Patient
Hand patients a referral card or printable form. Patients order directly from biologyofsleep.com and collect samples at home.
Lab Processes Samples
Salimetrics’ CLIA-certified lab performs melatonin analysis on the returned salivary samples with validated assays.
Review & Treat
Results arrive in your HIPAA-compliant portal. Use the circadian phase data to guide targeted, evidence-based treatment.
Provider Registration
Join the Network. Transform How You Treat Sleep.
Registration takes under two minutes. Once submitted, our clinical support team will follow up with portal access, training materials, and everything you need to start ordering DLMO assessments for your patients.
→ Free access to a HIPAA-compliant results portal
→ Complimentary patient referral materials
→ Ongoing clinical support from the Salimetrics team
→ Live patient support line for test & facilitation questions
→ Insurance documentation & coverage support tools
→ Provider Quick Start Guide & education resources
→ Hands-on training for evaluation & DLMO interpretation