Iron Deficiency and Sleep: Can Low Iron Affect Your Rest?

31st May 2023 | Sleep & Customer Satisfaction
Stressed woman

Iron deficiency anaemia is a widely prevalent ailment that occurs when there is a shortage of iron in the body, affecting the proper oxygen transportation in your blood. This condition can lead to significant pain and even disrupt your sleep. Fortunately, treating anaemia can help relieve insomnia and other sleep disturbances. TEMPUR® UK will explore how anaemia affects your sleep and supply helpful tips on how to effectively manage it.

What is iron deficiency anaemia?

Anaemia occurs when the body experiences a deficiency of red blood cells, which manages the vital task of delivering oxygen throughout the body and collecting carbon dioxide for elimination during exhalation. Among the different types of anaemia, the most common one involves insufficient iron levels. Iron plays a crucial role in the production of haemoglobin, a protein that enables red blood cells to capture and transport oxygen effectively. Without an adequate supply of iron, red blood cells are unable to efficiently bind and deliver oxygen to the rest of the body.

How does anaemia affect sleep?

Examining the correlation between anaemia and insomnia is still a fresh area of research, calling for further investigation. However, a recent study delved into the potential link between anaemia and an increased risk of insomnia, uncovering intriguing associations between the two conditions. Notably, individuals identified as having anaemia showed a higher prevalence of insomnia. Furthermore, the presence of prior anaemia was found to be linked to a 32% greater likelihood of developing insomnia six years later. While severe anaemia showed a strong association with an elevated risk of insomnia, mild and moderate anaemia also displayed an increased susceptibility. Interestingly, men with anaemia were found to be at a greater risk of experiencing insomnia compared to women with anaemia.

Genetic link between anaemia and insomnia

Multiple scientific studies have delved into the intricate genetic mechanisms underlying insomnia, employing genome-wide analyses to pinpoint specific genes associated with this sleep disorder. Notably, one gene that has garnered significant attention is MEIS1, which shows a strong correlation with insomnia. It is also worth mentioning that MEIS1 has already been linked to Restless Legs Syndrome (RLS), a neurological condition that can significantly affect sleep quality. Individuals afflicted by RLS experience an irresistible urge to move their legs and other body parts to alleviate unpleasant sensations like tingling, itching, or general discomfort. These discomforting sensations tend to worsen during periods of inactivity, such as sitting or lying down, making night-time particularly challenging for those affected. RLS can cause substantial disruptions to sleep, making it arduous to start sleeping and keep uninterrupted rest throughout the night.

What are the symptoms of anaemia?

The symptoms of anaemia can vary, and at times, anaemia can be present without any noticeable signs. Feeling tired, sluggish, or experiencing weakness and a lack of energy to meet the demands of daily life are common occurrences. Other symptoms may include, but are not limited to:

  • Chest pain
  • Being short of breath
  • Pale and/or yellow skin
  • Irregular heartbeat


When to seek medical help

Experiencing occasional difficulty sleeping is a common occurrence. However, if you find yourself constantly facing severe or frequent insomnia or any other sleep-related problem that significantly interferes with your daily life, it is advisable to consult a healthcare provider. They can offer valuable insights into the potential causes of your sleep difficulties and work with you to develop a comprehensive plan for improving your overall rest.

If you suspect you may be dealing with anaemia, it is highly recommended to discuss your concerns with a healthcare professional. While mild anaemia is a commonly encountered condition that can be easily treated, there are instances where anaemia may be symptomatic of more serious underlying conditions such as a weakened immune system or other health-related issues that require immediate attention. Seeking the guidance of a healthcare provider will enable you to receive the necessary care and promptly address any potential underlying health concerns.

Do you suffer from low-iron deficiency and does this affect your sleep?