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If there's one thing worth prescribing to most patients, it's better sleep. That's only slightly facetious. Sleep is genuinely one of the most powerful levers for health, and it is consistently the one people sacrifice first when life gets busy.

Poor sleep is associated with increased risk of cardiovascular disease, type 2 diabetes, depression, anxiety, obesity, and impaired immune function. Adults need between seven and nine hours of quality sleep per night. Most people are not getting it.

What Is Sleep Hygiene?

Sleep hygiene is just the collection of habits and practices that support consistent, restorative sleep. It sounds a bit clinical, but it really comes down to working with the body's natural rhythms rather than against them.

What Actually Works

Keep a consistent sleep schedule. This is the big one. Going to bed and waking up at the same time every day, including weekends, is one of the most effective ways to regulate the circadian rhythm. The weekend lie-in can feel sacred, but sleeping in by two hours on Saturday is essentially giving the body mild jet lag before the week even starts.

Make the bedroom a sleep-friendly environment. Cool, dark, and quiet. If light is an issue, decent blinds or an eye mask help. If noise is the problem, white noise or earplugs can help more than expected.

Screens before bed are genuinely problematic. The blue light from phones and tablets suppresses melatonin, the hormone that signals to the brain that it's time to sleep. Aim for no screens 30 to 60 minutes before bed. It's a tough ask, but it does make a difference.

Watch caffeine timing. Caffeine has a half-life of around five to six hours, which means a coffee at 3pm can still be active in the system at 9pm. This surprises a lot of people who insist caffeine doesn't affect them. Sometimes it does and they just can't tell.

Alcohol is not a sleep aid. It might help someone fall asleep faster, but it fragments sleep and significantly reduces the restorative deep sleep stages. Waking up groggy after a few drinks is not a coincidence.

Wind down with intention. A consistent pre-sleep routine, whether that's reading, a warm shower, gentle stretching, or even just sitting quietly, signals to the nervous system that it's time to transition. It doesn't need to be elaborate.

When to See Your GP

Persistent poor sleep despite doing everything right is worth raising with a GP. Conditions like sleep apnoea, restless legs syndrome, anxiety, and depression are very common drivers of poor sleep and all of them are treatable.

Sleep is not a luxury. It is a clinical priority.