Candlelight wants to help you sleep better.

Are you a night owl? Do you spend all night at your computer; working, writing, reading? Do you find it hard to sleep afterwards?

There may be a connection. You see, it's all to do with light and chemistry.

Your body produces a chemical called melatonin. Melatonin is important because it helps you fall asleep. Normally, you produce more melatonin at night because sunlight suppresses its production during the day.

The trouble is, in this electronic world, we are surrounded by a multitude of light sources that mimic sunlight. In particular, modern lightbulbs and computer displays throw out enough blue light to fool our bodies into thinking that it's daytime; even if it's three o'clock in the morning. If you use a computer late at night, nighttime production of melatonin can be suppressed and you may find your sleep quality suffers.

Many people have found that wearing orange tinted glasses after dark improves their sleep. But what if you don't have a pair of orange glasses?

Never fear. Candlelight is here to help. Candlelight mimics the orange glasses effect. By careful application of computer magic, the Candlelight app reduces the blue component of your Mac's display, leaving only the warm amber glow of 'candlelight'.

If you're at your Mac well past the witching hour, you may find that using Candlelight leads to a better night's sleep.