An evening tea break may be part of your daily routine. If falling asleep has become difficult, it is worth looking at when you have caffeine and how much you consume across the day—not just your last cup.
How can caffeine affect rest?
Caffeine stimulates the nervous system and can increase alertness. Its effects last for hours, and sensitivity varies between people. It may contribute to difficulty sleeping, restlessness or anxiety, particularly when taken close to your intended bedtime.
Look beyond coffee
Tea, cola, energy drinks, chocolate and some medicines also contain caffeine. Amounts vary with the product, portion and preparation. “Only two coffees” may not describe your full intake if you also drink several teas or an energy drink.
Review your routine with a simple record
- Write down the time and approximate size of caffeinated drinks.
- Include energy products and relevant pharmacy medicines.
- Record your intended bedtime and how the night felt.
- Note whether workdays and days off differ.
You could bring this record to an appointment and ask whether moving caffeine earlier would be a useful first change. Keep the record simple; it is a conversation aid rather than a test you need to complete perfectly.
Make changes thoughtfully
Reducing regular caffeine suddenly can cause headaches, irritability or temporary drowsiness. A gradual reduction may be easier. Ask a clinician about caffeine if you have a sleep disorder, are pregnant, or take medicines that may interact with it.
Caffeine effects can last up to eight hours, according to NHLBI sleep guidance. There is no universal cut-off that suits every person; consider your bedtime and response.
Will avoiding caffeine solve all insomnia?
No. If sleep remains difficult, describe the ongoing problem to a clinician rather than assuming you need a stricter food or drink rule. Other factors may need attention.
General educational information; not a substitute for individual medical advice. Featured images are illustrative.
