Twilights Monaco

Key Benefits

• Blocks 99% of blue, green, and violet light.

• Polarised lenses reduce glare and block UV naturally.

• Scratch-resistant lenses with anti-reflective polycarbonate coating.

• Premium Italian acetate frame for lightweight comfort.

• EEG-verified calming effect supporting melatonin and deep sleep.

TrueDark Twilights Monaco combine serious sleep protection with a timeless, vintage-inspired design. The deep red lenses block 99 percent of blue, green, and violet light, along with 99 percent of UVA and UVB rays, helping preserve natural melatonin production and support a healthy circadian rhythm.

Crafted from premium Italian acetate, the sleek black frame feels lightweight yet durable, making it comfortable for extended evening wear. Designed for night-time screen use, travel, and light-sensitive sleepers, Monaco glasses help create a darkness-like effect that signals the brain it is time to rest. EEG data shows brainwave activity can shift into a calmer alpha state within minutes, supporting faster relaxation and easier sleep onset.

Each pair includes a foldable hardshell case and a microfibre lens cleaning cloth for everyday protection and care.

Light doesn’t just help you see. It tells your brain how to feel and when to switch on or off. TrueDark focuses on managing what the brand calls “junk light” — artificial blue, green, and violet wavelengths from screens and modern lighting that interfere with your circadian rhythm. Unlike basic blue-light glasses, TrueDark lenses are designed to filter specific wavelengths at different times of day, helping reduce overstimulation and support more natural sleep and focus patterns. Plus, TrueDark is the only brand backed by EEG-verified research showing brainwaves can shift from alert beta states into calmer alpha and even deep-sleep delta states. It’s a practical tool for navigating modern light exposure, not a fashion accessory.

TrueDark was founded by Dave Asprey after years of struggling with poor sleep caused by artificial lighting. When standard blue blockers failed to make a meaningful difference, he worked with neuroscientists and circadian biology experts to develop a more complete light-management system. The insight was simple: blue light isn’t the only problem — green and violet light also affect brain signalling when exposure happens at the wrong time. TrueDark lenses were created to block the right wavelengths at the right moments, helping people better align with their natural 24-hour rhythm. Designed as a sleep, focus, and performance tool, TrueDark exists to help people feel better by fixing light at the source.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

When: Nighttime. 30 minutes before bed.

Where: Wear just before sleep, or if you wake at night for a drink, bathroom break, or childcare. They protect your rhythm so you can fall back asleep quickly.

Why: Twilight lenses block 99% of junk light with a deep red tint. EEG data shows they shift brainwaves from alert (beta) to calm (alpha) within minutes, helping you fall asleep fast and stay asleep.