Everyone has a ‘circadian rhythm’ – a cycle of about 24 hours that helps to determine our sleeping and feeding patterns.  The circadian rhythm is also thought to be involved in processes such as hormone production and cell regeneration[1].

Some people describe this as a ‘body clock’.

Although your circadian rhythm is controlled by a part of your brain, external factors can disrupt and influence it.

Light (particularly blue light) is one such influencer, and a common source of blue light late at night is from gadgets such as TVs, mobiles and tablets. Research from Harvard University suggests that 30 minutes worth of browsing on your phone before bedtime can delay the onset of REM sleep by about 30 minutes.

The ideal solution is to stop using these gadgets well before bedtime. For example, you can unwind by reading a good book in low lighting.

If you really can’t give up your late night phone browsing, a good compromise is the WaveWall Sleep Anti Blue Light Screen Protector. Simply fix this durable protector to your phone screen to filter away blue light whilst retaining image quality.

Blackout curtains or blinds are a great way of shielding yourself from the disturbance of street lamps or car headlights outdoors.

Ease the annoyance of sleep inertia (that ‘groggy’ feeling upon waking) by investing in a wake up light like the Lumie Bodyclock. These clever alarm clocks gradually increase light levels during the 30 minutes before wake-up time to mimic the light of dawn. This helps you to feel fresher and more alert when you wake.