Poor Sleep

One poor night does not mean that you have insomnia, and sleep needs differ between people. Clinicians look at the sleep pattern, available opportunity to sleep, daytime effects and possible underlying causes.

Poor sleep can mean difficulty falling asleep, waking repeatedly, waking too early or feeling unrefreshed after sleep. It may happen briefly or continue over a longer period. Poor sleep is a symptom pattern, not one diagnosis. Almost everyone sleeps badly occasionally. Stress, noise, illness, travel or a disrupted routine may affect several nights without indicating a sleep disorder. The pattern becomes more important when it is persistent or affects your daytime functioning. Sleep needs vary between people and change with age. Many adults sleep for around seven to nine hours, but the number alone does not determine whether sleep is adequate. How refreshed and functional you feel also matters. Poor sleep and insomnia are not identical Insomnia means that you regularly have difficulty sleeping despite having a suitable opportunity and environment for sleep. The difficulty may involve falling asleep, remaining asleep, waking too early or feeling that sleep is poor quality. The sleep problem must also cause distress or affect daytime functioning. Lying awake because you have chosen to work late or care for someone is insufficient opportunity for sleep. This is different from insomnia, although the result can still be significant sleep deprivation. The NHS describes insomnia lasting less than three months as short term insomnia. Insomnia lasting three months or longer is described as long term insomnia. Duration helps describe the pattern but does not identify the cause by itself. Daytime effects provide important clues Poor sleep may cause irritability, reduced concentration, slower thinking, headaches or reduced motivation. You may make more mistakes or find ordinary demands harder to manage. Tiredness and sleepiness are related but not identical. Tiredness means lacking energy or feeling exhausted. Sleepiness means struggling to remain awake or being likely to fall asleep unintentionally. This distinction matters clinically. Someone with insomnia may feel exhausted but remain unable to nap. Someone with a sleep disorder such as obstructive sleep apnoea may repeatedly doze during quiet daytime activities. Do not drive when you feel sleepy. Stop driving safely if you are struggling to remain awake. Excessive sleepiness caused by a medical condition may also have DVLA reporting implications. Many factors can disturb sleep Stress, anxiety and low mood commonly affect sleep. Worry may become more noticeable when the environment becomes quiet. Poor sleep can then increase anxiety, irritability and low mood the following day. Pain, breathlessness, reflux, itching, coughing, urinary symptoms and menopausal symptoms can interrupt sleep. Treating the underlying symptom may be more useful than treating sleep alone. Caffeine, nicotine, alcohol and recreational drugs can alter sleep. Alcohol may make you feel sleepy initially but can fragment sleep later. Withdrawal from alcohol or sedative drugs can cause severe sleep disruption and other dangerous symptoms. Many prescribed and non prescribed medicines can affect sleep or daytime alertness. Examples include some stimulants, corticosteroids, decongestants and sedating antihistamines. Do not stop a prescribed medicine suddenly without clinical advice. Shift work, jet lag and irregular schedules can disrupt your body clock. Environmental factors such as noise, light, temperature, an uncomfortable bed or caring responsibilities may also contribute. How sleep difficulties can maintain themselves After several poor nights, you may begin worrying about whether you will sleep. You may watch the clock, go to bed much earlier or remain in bed longer. These understandable responses can make the bed increasingly associated with wakefulness and frustration. Long daytime naps may reduce the natural pressure to sleep at night. Sleeping much later after a poor night can also move your sleep schedule. The effect differs between people and circumstances. Repeatedly checking a phone or clock can increase alertness. Trying forcefully to make yourself sleep can also increase tension. Persistent insomnia often involves an interaction between an original trigger and habits or thoughts that continue the problem. Other sleep disorders can look similar Obstructive sleep apnoea causes repeated narrowing or closure of the upper airway during sleep. Possible clues include loud snoring, witnessed breathing pauses, gasping or choking, unrefreshing sleep, morning headaches and excessive daytime sleepiness. Snoring alone does not diagnose sleep apnoea. NICE advises considering the combination of symptoms and associated health conditions. Diagnosis usually requires a sleep study rather than symptoms or a questionnaire alone. Restless legs syndrome causes an urge to move the legs, often with uncomfortable sensations. It is usually worse during rest and in the evening and improves temporarily with movement. It can delay sleep or cause repeated waking. Some people experience sleepwalking, nightmares, unusual movements or acting out dreams. Others have sudden uncontrollable sleep episodes. These patterns may require assessment for a different sleep disorder rather than treatment as uncomplicated insomnia. Reduced need for sleep is different from insomnia During insomnia, you usually want to sleep and feel affected by not sleeping. A reduced need for sleep means sleeping much less without initially feeling tired. Several nights with little sleep alongside unusually elevated or irritable mood, increased energy, rapid speech or impulsive behaviour may suggest mania or hypomania. This pattern requires urgent mental health assessment, particularly when behaviour is escalating or unsafe. How a clinician assesses poor sleep The clinician asks what time you go to bed, how long sleep seems to take and how often you wake. They explore your waking time, naps, work schedule and differences between weekdays and weekends. They ask whether you have enough opportunity to sleep and whether the bedroom is suitable. Questions cover snoring, breathing pauses, leg symptoms, unusual night time behaviour and unintended daytime sleep episodes. The assessment also considers pain, physical symptoms, menopause, mental health, medicines, caffeine, alcohol and drugs. A bed partner's observations may provide useful information about breathing or movements during sleep. A sleep diary may help show patterns over one or two weeks. It records sleep timing, waking, naps and relevant influences. Physical examination depends on what the person describes. A clinician may assess weight, blood pressure, the airway, breathing or signs of another health condition. A mental state examination may be appropriate when mood, anxiety or unusual behaviour is contributing. Tests depend on the suspected cause Insomnia is usually assessed from the symptoms and background. There is no single blood test, scan or sleep study that confirms ordinary insomnia. Targeted blood tests may be considered when symptoms suggest anaemia, thyroid disease, iron deficiency or another physical contributor. Testing is not automatically required for every sleep complaint. A sleep study may be arranged when sleep apnoea, unusual sleep behaviour or another sleep disorder is suspected. Sleepiness questionnaires can support assessment, but they cannot establish the diagnosis alone. Improving sleep A regular waking time helps anchor your sleep pattern. It may also help to go to bed when sleepy, keep the bedroom dark and quiet, and allow time to wind down. Consider whether caffeine, nicotine, alcohol, late meals, daytime naps or evening screen use affect your sleep. Changes should be practical and sustainable rather than treated as rigid rules. General sleep advice is sometimes called sleep hygiene. It can help, but sleep hygiene alone may not resolve long term insomnia. Persistent insomnia often requires a more structured approach. Cognitive behavioural therapy for insomnia is usually the first treatment for long term insomnia. It addresses thoughts, routines and behaviours that maintain sleep difficulty. Treatment may be delivered face to face or through an approved digital programme. Some CBT I techniques deliberately change the time you spend in bed. Follow these techniques through a structured programme, especially when another health condition affects your sleep or daytime alertness. Medicines are not the default solution Some pharmacy sleep aids may provide brief relief but do not cure insomnia. Sedating products can cause next day drowsiness and affect driving, work or falls risk. They may also interact with alcohol or other medicines. Prescription sleeping medicines are generally reserved for selected situations and limited periods. Some can cause tolerance, dependence, impaired coordination or withdrawal symptoms. The expected benefit and possible harm should be reviewed before treatment. Arrange a GP assessment when poor sleep has continued for months, self care measures have not helped or daytime life is becoming difficult. Seek assessment earlier when another sleep disorder, physical illness or significant mental health problem may be contributing. Poor sleep may overlap with "Low Mood", "Anxiety", "Persistent Tiredness and Fatigue", "Night Sweats" and "Palpitations", but none of these symptoms identifies the cause of the sleep problem by itself.

Clinicians do not interpret poor sleep from the number of hours alone. They distinguish inadequate opportunity from insomnia, tiredness from involuntary sleepiness, and isolated sleep difficulty from patterns suggesting physical illness, mental health problems, medicines or another sleep disorder.