“I'll go to bed early tonight.”

Is this something you tell yourself every day?

We all know the benefits of going to bed early-better skin, stable mood, and improved alertness.

But when night falls, your body still doesn't send the "time to sleep" signal.

It's not that you don't want to sleep-your biological clock is simply out of sync.

Instead of forcing yourself to "shut down," try "starting up" earlier.

Waking up and getting morning sunlight can actually help activate your body's early-sleep mechanism.

Light: The Switch for Your Biological Rhythm

What determines whether we feel awake or sleepy isn't the alarm clock—it's light.

When morning sunlight shines through your window, it suppresses melatonin and increases cortisol secretion.

Your brain receives the signal-"It's daytime."

As night falls, melatonin production resumes, and your body naturally becomes ready for sleep.

This is your circadian rhythm.

When light exposure is insufficient, this rhythm becomes disrupted, leading to sleep difficulties, fatigue, and mood instability.

Scientific Evidence: Morning Sunlight Really Works

Study 1｜Just Two Days of Morning Light Can Help You Fall Asleep Earlier

Subjects: Students who stay up late and sleep in on weekends, but have trouble falling asleep early on school days.

Findings: After only two mornings of sunlight exposure on weekends, participants fell asleep about two hours earlier, and their melatonin secretion shifted 0.5-1 hour earlier.

The stronger and longer the light exposure, the earlier and better the sleep.

Study 2｜Three Weeks of Morning Sunlight Significantly Improves Sleep Rhythm

Subjects: Typical "night owls" (average sleep time: 2:36 a.m.; wake time: 10:30 a.m.).

Findings: After three consecutive weeks of morning sunlight exposure, their bedtime advanced from 2:46 a.m. to 1:03 a.m. They not only fell asleep earlier and slept more soundly but also reported better mood.

Study 3｜Morning Light Exposure Helps Advance Sleep Timing

Research shows that even without waking up early, having bright light in the bedroom in the morning allows the eyes to perceive brightness and helps the body adjust its rhythm-advancing sleep onset by about 30 minutes at night.

But in Autumn and Winter, Sunlight Is Scarce

Shorter days, longer nights, overcast skies, and hectic commutes—

morning sunlight becomes a rare luxury.

If you can't embrace the morning sun,

keep a bit of it for yourself.

Bring the warmth of sunlight into your home.

LifeGlo Vitality Lamp

The LifeGlo Vitality Lamp simulates the spectral characteristics of morning sunlight.

It preserves the beneficial near-infrared wavelengths while filtering out ultraviolet rays and harmful blue light.

This helps regulate circadian rhythm, improve sleep quality, and relieve fatigue or Seasonal Affective Disorder (SAD) caused by lack of light exposure.

Just 15–20 minutes a day helps awaken your energy and calm your mind.

In the sunless seasons, let the LifeGlo Vitality Lamp accompany you-

to rediscover the version of yourself that feels bright, warm, and full of vitality.