Sleep changes with age in ways that are partly unavoidable and largely misunderstood. The total need does not fall much; what changes is how easily sleep is held onto. Knowing which part of that is normal ageing and which part is a treatable problem is most of the battle.
What genuinely changes with age
Deep slow-wave sleep declines gradually from early adulthood, and the internal clock tends to drift earlier — tired sooner in the evening, awake sooner in the morning. Sleep also becomes lighter and more easily interrupted. None of that is a disorder. It does mean the margin for error shrinks: the late coffee or the second glass of wine that once cost nothing now costs an hour.
The three-in-the-morning wake
Waking briefly between cycles is normal and most people forget it happened. What turns it into an hour of staring at the ceiling is usually what follows: checking the time, calculating remaining sleep, and the alertness that comes with mild frustration. The standard advice is unglamorous and works — if you are awake beyond about twenty minutes, get up, sit somewhere dim and dull until sleepy, then return. Lying in bed awake teaches the body that bed is a place for being awake.
The bladder, the prostate and the middle of the night
Getting up once or more each night becomes steadily more common in men after 50, and it is one of the most frequent causes of fragmented sleep. It is worth mentioning to a doctor rather than accepting, because the causes range from ordinary to entirely treatable, and because fluid timing in the evening is sometimes all that needs adjusting.
Sleep apnoea, again
It deserves repeating because it is common in men, strongly linked to weight and age, and very often missed. Loud snoring, gasping or pauses noticed by a partner, morning headache and daytime sleepiness form the pattern. Untreated it raises blood pressure and blunts recovery no matter how many hours are spent in bed. A sleep study is the answer, not a better pillow.
Alcohol is a sedative, not a sleep aid
It shortens the time to fall asleep and then reliably fragments the second half of the night, suppressing the restorative stages. The result is a full night in bed and a poor night of sleep. Two weeks without it in the evening is a cheap and unusually decisive experiment.
What actually helps
A consistent wake time, seven days a week, does more than a consistent bedtime. Morning daylight anchors the clock. Exercise helps, though hard sessions late in the evening work against some people. Keep the room cool and dark. And be realistic about caffeine's long tail — for many people an afternoon coffee is still working at bedtime.
When to see a doctor
Snoring with witnessed pauses, sleepiness severe enough to affect driving, insomnia persisting beyond a month, or sleep problems arriving alongside low mood all warrant an appointment rather than another product.
Most of what helps is free. Almost none of it is quick.