About Red Light Therapy

What is red light therapy?

Red light therapy (also known as photobiomodulation) is a non-invasive treatment that exposes the body to low-wavelength red and near-infrared light. Unlike UV light, red light penetrates the skin safely and interacts with cells at a biological level — supporting melatonin production, cellular repair, and circadian rhythm regulation.

How does red light therapy improve sleep?

Your body's sleep-wake cycle is governed by your circadian rhythm, which is heavily influenced by light. Blue and white light — from screens, overhead lighting, and energy-efficient bulbs — suppresses melatonin at night, making it harder to fall asleep. Red light doesn't have this effect. Used in the evening, it provides a warm light environment that supports your body's natural wind-down process, helping you fall asleep faster and sleep more deeply.

Is red light therapy safe?

Yes. Red light therapy is non-invasive, drug-free, and has no known side effects when used as directed. It does not emit UV light and does not damage skin or eyes. It is suitable for everyday use.

What does the research say?

Studies published in the Journal of Athletic Training and the Journal of Photochemistry and Photobiology have found that red light therapy can significantly improve sleep quality, duration, and circadian rhythm regulation. Research is ongoing, and the evidence consistently supports its effectiveness as a natural sleep aid.

How is red light different from blue light?

Blue light (emitted by screens, LED lighting, and sunlight) signals wakefulness and suppresses melatonin. Red light sits at the opposite end of the visible spectrum — it doesn't suppress melatonin and may actively support its production. Switching to red light in the evening is one of the most effective environmental changes you can make for better sleep.

About the Night Switch™

What is the Night Switch™?

The Night Switch™ is Circadian Sleep's red light therapy device, designed specifically for sleep improvement. It uses two clinically-informed wavelengths — 660nm red light and 850nm near-infrared light — to support melatonin production and circadian rhythm regulation. It's simple to use, requires no setup, and is operated with a single button.

What wavelengths does the Night Switch™ use?

The Night Switch™ uses 660nm red light, which supports melatonin production and skin-level cellular repair, and 850nm near-infrared light, which penetrates deeper into tissue to promote cellular energy production and muscle recovery — contributing to more restorative sleep overall.

How do I use the Night Switch™?

Place the Night Switch™ on your bedside table and turn it on 20–30 minutes before you go to sleep. Dim your other lights and avoid screens during this time. Use it consistently every evening for best results — your circadian rhythm responds to routine.

How long before I notice results?

Many users notice improvements in sleep onset and quality within the first week. For full circadian rhythm recalibration, consistent use over 4–8 weeks typically yields the most significant results. That's why we offer a 60-night satisfaction guarantee.

Can I use the Night Switch™ if I have a medical condition?

The Night Switch™ is a wellness device, not a medical device. If you have a diagnosed sleep disorder or are taking medication that affects light sensitivity, we recommend consulting your healthcare provider before use.

Orders & Shipping

Where do you ship?

We ship Australia-wide with free shipping on all orders. We also ship internationally to 28 countries — shipping costs are calculated at checkout based on your location.

How long will my order take to arrive?

Australian orders typically arrive within 3–7 business days after dispatch. International orders take 7–21 business days depending on your location and customs processing. All orders are processed within 1–3 business days.

Do you provide tracking?

Yes — all orders include tracking. You'll receive a tracking number by email once your order has been dispatched.

Will I be charged customs duties on international orders?

International orders may be subject to customs duties or import taxes charged by your country's customs authority. These charges are the responsibility of the customer and are not included in the order total.

Returns & Guarantee

What is the 60-night guarantee?

We stand behind the Night Switch™ with a 60-night satisfaction guarantee. If you're not satisfied with your results within 60 nights of receiving your order, contact us and we'll make it right — whether that's a replacement, exchange, or refund.

What is your standard return policy?

Outside of the 60-night guarantee, you have 30 days from the date of receiving your item to request a return. Items must be unused, in their original condition, and in original packaging. Return shipping is the responsibility of the customer.

How do I start a return?

Contact us at hello@circadiansleep.com.au to initiate a return. Please don't send items back without contacting us first — unrequested returns will not be accepted.

How long do refunds take?

Once your return is received and inspected, approved refunds are processed to your original payment method within 10 business days.

Our Guarantee to You

Our products come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage.

Still have a question? Contact us at hello@circadiansleep.com.au — we're happy to help.