LUNA RED® LIGHTING

Warm, Calming Light for Better Sleep

Light is the main cue your body uses to decide when to wind down. Bright, blue-heavy light in the evening tells your brain it is still daytime, which can delay sleep onset and hurt sleep quality. Warm, red-shifted light does the opposite: it lets your body ease into its natural rhythm. That simple idea is what the TrueLight Luna Red® sleep lighting line was built around, and it still guides everything we make today.

A note on the Luna Red® bulbs and nightlights

We have retired the Luna Red® sunset bulbs, luminaire, and nightlight. If you own one, it will keep doing its job, and the guidance on this page still applies to any warm, red-spectrum lighting. The Luna Red® name lives on in our Luna Red® IR + FIR Blanket, and our focus has moved to full-body red light therapy. If sleep lighting ever returns to the lineup, the newsletter is where we will announce it first.

How Evening Light Affects Your Sleep

You are biologically programmed to sleep when it is dark. Too much artificial light in the hours before bed, especially the blue-heavy junk light from screens and overhead LEDs, works against your body's natural melatonin production. Melatonin is the hormone that sets the timing of your sleep, and managing your evening light exposure is one of the most reliable ways to support it.

Warmer color temperatures, close to what you would see at sunset, are far gentler on your circadian rhythm. Red and amber wavelengths sit at the warmest end of the spectrum, which is why they are the standard recommendation for bedroom lamps, night lights, and any light you use after sundown.

How to Choose Sleep-Friendly Lighting

You do not need TrueLight hardware to put this into practice. When choosing a red light lamp or bulb for your bedroom, look for:

• Red or amber output. The bulb should emit primarily red and amber wavelengths rather than white light with a red coating over it.
• Low color temperature. Under 2000K reads like candlelight or a sunset. Standard "soft white" bulbs at 2700K are still too blue for the hour before bed.
• Dimming. Brightness matters as much as color. The ability to take the light down low in the last hour of the evening makes a real difference.
• Motion sensing for night lights. A red night light that only switches on when you move keeps midnight trips from jolting your sleep-wake cycle.

Our guides to the best bulbs for better sleep and night lights for better sleep go deeper on both.

Where TrueLight Is Focused Now

The same science that shaped Luna Red® took us further into red and near-infrared light. Today TrueLight builds research-backed red light therapy devices for energy, recovery, and skin, designed with our co-founder Dave Asprey.

• Shop the current lineup: the Energy Trism, Energy Square 2.4, and the Luna Red® Blanket.
• Read the red light therapy guide to see what the research says about wavelengths, dosing, and results.
• Read Dave's story: how a moldy basement and a brain injury led him to light as a recovery tool.

And if you want practical light tips like the ones on this page, join the newsletter below. No spam, just healthy lighting.