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Medical disclaimer: This site provides comparison information only and does not constitute medical advice. Consult your GP for medical guidance. Clinical content reviewed by Nathanial Smith, Registered Healthcare Professional (HCPC reg. PA43353).

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Tests for sleep problems

Trouble getting to sleep, staying asleep or waking refreshed

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Why test for sleep problems?

Poor sleep is most often linked to stress, routine or lifestyle. Some physical factors can contribute, including an overactive thyroid, changes in the stress hormone cortisol, and low iron stores, which are associated with restless legs.

Recommended tests

Cortisol

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Measures the body's main stress hormone

Cortisol

Thyroid function

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An overactive thyroid can make it hard to sleep

TSH
Free T4
Free T3

Iron profile

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Low ferritin is associated with restless legs at night

Ferritin
Iron

Magnesium

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Magnesium plays a role in normal muscle and nerve function

Magnesium

When to see your GP

See your GP if you are falling asleep during the day or while driving, if a partner notices you stop breathing or gasp in your sleep, or if poor sleep lasts more than three months.

Compare all sleep problems testsView all symptoms

Why test for sleep problems?

Symptom-led matching

See the tests commonly used to investigate this symptom

UKAS accredited labs

Every listed provider uses UKAS-accredited UK laboratories

Clear turnaround

Typical result times shown alongside price and biomarker coverage

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