Band 8.0 IELTS Writing Task 2 Model Answer

Overall Band Score: 8.0 · Cambridge IELTS 15 · 2026-08-12

IELTS Writing Task 2 question

Nowadays many people complain that they have difficulties getting enough sleep. What problems can lack of sleep cause? What can be done about lack of sleep?

Give reasons for your answer and include any relevant examples from your own knowledge or experience.

 

Student answer (Band 8.0)

Inadequate sleep has become a modern day problem owning to hectic and longer work schedules and digital distractions which is concerning as it leads to physical and mental health problems, This essay will examine the severe health and productivity problems stemming from sleep deprivation and propose actionable solutions, including sleep hygiene and workplace regulations.

Problems caused by lack of sleep

A chronic deficit of sleep severely impairs both physical health and cognitive function. On an individual level, sleep-deprived people experience a drastic drop in concentration, memory retention, and decision-making capabilities. For example, a student who stays up all night studying often performs worse on an exam due to brain fatigue than one who is well-rested. Sufficient sleep is necessary for both the brain and the body to function adequately as long term sleep deprivation weakens the immune system, leaving individuals highly vulnerable to chronic conditions such as obesity, heart disease, and severe mental health disorders like depression.

Solutions to Address sleep deprivation

To combat the problem of sleep inefficiency a combination of personal discipline and societal adjustments is required. First, individuals must practice strict sleep hygiene. This includes establishing a consistent sleep schedule and creating a screen-free environment at least one hour before bed. The blue light emitted by smartphones suppresses melatonin production, making it difficult to fall asleep By replacing scrolling with reading a physical book, individuals can drastically improve their sleep quality. Second, employers and institutional bodies must intervene by implementing healthier schedules. Companies can introduce flexible start times or ban late-night work emails to ensure employees have adequate time to unwind.

In conclusion, a lack of sleep results in poor personal health, reduced productivity, and increased public safety hazards. However, by enforcing personal digital boundaries and restructuring demanding work cultures, society can effectively mitigate these risks and restore healthy sleep patterns.

AI examiner evaluation

Task Achievement / Task Response — Band 8.0

The response addresses all parts of the prompt, identifying both the consequences of sleep deprivation and potential solutions. The ideas are well-developed and supported with relevant examples, such as the student studying for an exam and the impact of blue light on melatonin. The position is clear throughout, and the essay maintains a consistent focus on the topic. The structure is logical, with distinct sections for problems and solutions, which helps in fully addressing the task requirements. The content is relevant and provides a comprehensive overview of the issue, meeting the criteria for a high band score.

Coherence and Cohesion — Band 8.0

The essay is logically organized with a clear progression of ideas. Each paragraph has a central theme, and the transition between the problems and the solutions is smooth. Cohesive devices such as 'For example', 'First', 'Second', and 'In conclusion' are used effectively to guide the reader. Paragraphing is used appropriately to separate the different aspects of the prompt. While the use of headings is not strictly necessary in an IELTS essay, the flow of the text remains coherent and easy to follow throughout the response.

Lexical Resource — Band 8.0

The vocabulary is varied and precise, demonstrating a good range of topic-specific language. Phrases such as 'chronic deficit', 'cognitive function', 'sleep hygiene', and 'mitigate these risks' show a sophisticated level of control. The student uses collocations effectively, such as 'drastic drop in concentration' and 'suppresses melatonin production'. There are no significant errors in word choice or spelling that impede communication. The language is natural and appropriate for an academic or formal context, reflecting a strong command of English vocabulary.

Grammatical Range and Accuracy — Band 8.0

The essay displays a wide range of grammatical structures, including complex sentences with subordinate clauses (e.g., 'The blue light emitted by smartphones suppresses melatonin production, making it difficult to fall asleep'). The majority of sentences are error-free, and punctuation is generally accurate. There is a minor punctuation error in the introduction where a comma is used instead of a period after 'health problems', but this is a rare slip. The control over tense and subject-verb agreement is consistent throughout the text, demonstrating a high level of grammatical accuracy.

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