You have been tired all day. You have thought about your bed more than once. By the evening you feel as though you could fall asleep on the sofa without trying.
Then you get into bed.
Suddenly your mind is busy. Your body feels restless. You notice every sound in the house. Perhaps you do fall asleep, and then wake at three, instantly alert, with the thoughts already going.
If that is familiar, you are in a great deal of company. The NHS lists stress and anxiety among the most common reasons people cannot sleep, and notes that stress shows up physically and behaviourally as well as mentally — including in how much we sleep, in both directions.
But why can we feel so tired and so alert at the same time?
Tiredness and being settled are not the same thing
One of the things I see most often in my work is people who are deeply tired and yet find it remarkably difficult to slow down.
They describe themselves as permanently on. They may be juggling work, children, caring responsibilities, health worries or simply the constant mental load of ordinary life. Often there is no single enormous source of stress at all. It is the accumulation of a great many smaller demands with very little genuine downtime in between.
We tend to assume stress is something we consciously feel. But you do not have to think I am stressed for your system to be responding to ongoing demand. You might simply notice that you are tense, easily startled, irritable, unable to concentrate, or finding it hard to put a thought down.
And bedtime is often the first moment in the day quiet enough for you to notice any of it.
Your nervous system is doing its job
The autonomic nervous system regulates a great deal that we do not consciously control. Broadly speaking it supports both states of activation and states associated with rest and recovery.
Activation is not the problem. We need it. The difficulty comes when life offers plenty of opportunities to be activated and relatively few to properly settle afterwards.
Sleep researchers have explored this under the heading of hyperarousal — heightened cognitive, emotional or physiological arousal that can sit alongside real tiredness and make sleep harder. Worry and repetitive thinking come up repeatedly as central to that picture.
Which explains something I hear almost weekly: I am absolutely exhausted, but I cannot switch off. Your need for sleep can be entirely real while your system is simultaneously struggling to move into a quieter state.
"Being told to relax when you are already wired is not soothing. It is another task, with a deadline, in a bed."
Why "just relax" rarely lands
When someone is already wired, being told to relax quietly becomes another job.
You get into bed and start checking. Am I relaxed yet? Why am I still awake? I need to sleep. I am going to be wrecked tomorrow. Sleep has become something to achieve, and achieving is exactly the wrong gear.
This is why I encourage people to think about settling across the whole day rather than expecting the body to go from full speed to deeply calm because it happens to be half past ten.
NICE recommends sleep-hygiene advice for people with insomnia, and NHS guidance covers regular sleep and waking times, winding down beforehand, and looking honestly at caffeine, alcohol and the bedroom itself. Those foundations matter. From a nervous system point of view it is also worth looking at what happens in the hours before any of it.
Small signals of slowing down
This does not mean adding another elaborate routine to a day that is already full. I usually suggest starting much smaller than people expect.
- Notice when you are rushing without needing to be.
- Unclench your jaw when you catch it. Let your shoulders drop.
- Take a few slower breaths before moving on to the next thing.
- Step outside for a few minutes, even briefly.
- Put your phone down without immediately picking up something else.
Most of all, notice how often you genuinely let yourself do nothing.
These moments are not about forcing your nervous system into a particular state. Think of them as small experiences of less demand. Over time, noticing your own patterns may help you tell the difference between being physically exhausted and actually feeling settled — which are not at all the same sensation, though we tend to use one word for both.
Look beyond the night
When you regularly feel wired but tired, it is tempting to make sleep the whole problem. Sometimes it is more useful to zoom out and ask a different question.
How much of my day does my system spend rushing, anticipating, worrying, performing or responding — and how often does it get the chance to come back down again?
Your difficult nights may make more sense in the context of your whole day. And rather than trying harder and harder to switch yourself off at bedtime, the gentler starting point is usually making more room to slow down long before your head reaches the pillow.
Welvow includes practitioners working with the nervous system in different ways — Spinal Flow, breathwork, somatic approaches, craniosacral therapy and counselling among them. If sleep has been difficult for a long stretch, a conversation with your GP is worth having alongside anything else, particularly if the pattern has changed recently.
Find your practitionerIf you take one thing from this, let it be that being tired is not the same as being able to rest. The two need different things from you, and only one of them can be arranged at half past ten at night.
