Targeted Single-Marker Tests
Bedtime Cortisol Test
Also known as: Nighttime salivary cortisol
A single night sample to see whether cortisol is keeping you awake.
Cortisol should be at its lowest at night. This single bedtime saliva sample checks whether elevated evening cortisol may be keeping you awake.
What it measures
What's measured
- Nighttime salivary cortisolShould be your lowest cortisol of the day.
Who this is for
For trouble falling asleep or a racing mind at bedtime.
- Trouble falling asleep
- Racing mind at night
- Waking wired
- Second wind late at night
Two ways to get the Bedtime Cortisol Test
Lab Only
Available to program members — ordered and reviewed by Tiffeny.
Personalized with Tiffeny
RecommendedWant your results personally reviewed?
- One-on-one interpretation of your results
- Written Root Cause Report
- Personalized 12-week protocol
✦ Members receive exclusive pricing on multi-lab orders. See member perks →
Labs are processed by a CLIA-certified laboratory partner. To protect your privacy, I can only see your results if you add Tiffeny Parker as your practitioner.
What results can reveal
- Elevated night-time cortisol
How we interpret it
We read every panel through a functional lens — optimal reference ranges, ratios, and cross-panel patterns. Results become part of your written Root Cause Report and your personalized 12-week protocol.
Magnesium and steady sodium/potassium help the nervous system settle at night, so we use your HTMA to shape an evening routine and mineral plan.
Often paired with
Common questions
Not sure which panels you need?
Start with the Root-Cause Fit Assessment. Takes about 3–5 minutes. If it looks like we're a good fit, you'll be invited to schedule a 45-minute consultation to discuss your health history, goals, and whether this program is the right next step for you.
Educational information only. Functional lab testing is not intended to diagnose, treat, cure, or prevent any disease. Results are reviewed in the context of your full health history.