TrueDark
A three-stage system (Daylights, Sunsets, Twilights) targeting blue plus green and violet wavelengths, associated with Dave Asprey
WELLNESS
Marketed as a general wellness device. Not FDA cleared, approved, or evaluated for any medical claim.
Key facts at a glance.
- Founded
- 2016
- Headquarters
- Kent, Washington, USA
- Price range
- $120–$380
The real price over three years.
Total cost of ownership · 3yr
| Hardwareone-time | $120 |
| 3-year total | $120 |
What the device does.
- + Daylights (daytime; brand-stated ~75% blue block), Sunsets (evening; stated ~99% blue / ~93% green), Twilights (night red; stated ~99% blue/green/violet plus UVA/UVB)
- + Twilights Classic and Elite tiers (Elite uses an aircraft-grade aluminum frame)
- + Photochromic "Transition" Daylights option
- + Fitover designs to wear over prescription glasses
The trade-offs.
- + Three-stage system (Daylights, Sunsets, Twilights) targets green and violet light, not just blue
- + Twilights night lens is a serious deep-red blocker (brand states ~99% blue/green/violet plus UVA/UVB)
- + Elite tier adds an aircraft-grade aluminum frame; Fitover options wear over Rx glasses
- + Photochromic Daylights option for variable daytime light
- − Blue-light-glasses evidence is limited/mixed; TrueDark's "proof" (EEG, user surveys) is not peer-reviewed
- − Premium pricing (Daylights ~$120-380; Twilights ~$150-160)
- − Blocking figures are brand-stated, not independently verified
- − Deep red night lenses heavily distort color and are evening-only
Biohackers who want a day/evening/night protocol targeting blue, green and violet light
The long read.
§ Hands-on instrument testing pending. Based on published specifications and third-party data.
Overview
TrueDark (founded ~2016, associated with Dave Asprey) sells a three-stage protocol rather than a single pair: Daylights for daytime screens, Sunsets for the evening transition, and Twilights — deep red lenses — for the hours before bed. Its distinguishing angle is targeting blue plus green and violet wavelengths, where most competitors focus on blue alone.
The three stages
- Daylights (day): yellow lenses; TrueDark states they block ~75% of blue light. A photochromic “Transition” version exists.
- Sunsets (evening): gradient red/yellow; brand-stated ~99% blue and up to ~93% green.
- Twilights (night): deep red; brand-stated ~99% blue/green/violet plus ~99% UVA/UVB. Comes in Classic and Elite tiers — the Elite differs mainly by an aircraft-grade aluminum frame, not the lens spec.
If you only buy one piece, the Twilights night lens is the one with a circadian rationale.
The evidence, honestly
All the blocking percentages above are brand-stated, not independently verified, and we report them as claims. We won’t repeat TrueDark’s “70% of users report deeper sleep” survey or its EEG demonstrations as proof — a shift in EEG or a user survey is not a controlled sleep outcome. The broader literature on blue/green-blocking glasses and sleep is small and methodologically mixed: reducing evening short-wavelength light may help melatonin timing in some people, but no large, well-controlled trial has established a reliable, generalizable sleep benefit from this product category.
These are wellness eyewear, not medical devices, and none of this treats a sleep disorder.
Price
Daylights run roughly $120-380 (the premium Aegis frame sits at the top), and Twilights about $150-160. That’s at the expensive end of the category, much of it driven by frames and the three-stage system rather than proven results.
Verdict: Not yet tested
We haven’t bench-measured TrueDark’s lenses, so no recommendation yet. The Twilights deep-red night lens is a credible evening blocker if you want one; the daytime and “whole protocol” claims should be taken as marketing, not medicine.
How we’ll assess it
If we test it, we’ll measure transmission across blue, green and violet bands for each stage and compare the Twilights night lens against other red night lenses. See our methodology.
Changelog
- 2026-06-16: Initial listing. Not yet tested; reported blocking figures as brand claims and flagged that EEG/survey “proof” is not peer-reviewed.
Common questions.
- How much does TrueDark cost?
- TrueDark costs $120–$380.
- Does TrueDark require a subscription?
- No. TrueDark does not require a subscription — there is no mandatory recurring fee to keep using it.