Loughborough University

Behavioural Sleep Dysfunction as a Mechanistic Driver of Long COVID Symptom Severity: An Integrative Psychophysiological Investigation

Loughborough UniversityLoughborough, United Kingdom

Course overview

Sleep disturbances have emerged as one of the most persistent and debilitating symptoms reported by individuals with Long COVID. Prospective cohort work demonstrates that Long COVID is associated with shorter sleep duration, poorer sleep quality, and increased rates of moderate‑to‑severe sleep disturbance up to three years post‑infection. Mechanistic reviews highlight several biological factors that may underpin these disturbances, including neuroinflammation, cytokine imbalance, autonomic nervous system dysfunction, circadian disruption, and mitochondrial impairment, all of which can alter sleep–wake regulation and contribute to insomnia‑like symptoms.

Pre‑infection sleep characteristics also appear relevant: longitudinal UK data show that poor sleep quality and greater variability in sleep efficiency are associated with an increased risk of developing Long COVID. These findings suggest that sleep may both predispose individuals to prolonged post‑viral symptoms and be adversely affected by the condition itself, underscoring a bidirectional relationship. Parallel evidence from behavioural sleep science, demonstrates that insomnia processes such as hyperarousal, irregular sleep schedules, and dysfunctional sleep behaviours negatively affect mood, psychomotor performance, daytime functioning, and overall wellbeing.

These behavioural mechanisms may amplify symptom severity in Long COVID, which is already characterised by fatigue, cognitive impairment, autonomic dysfunction, and impaired physiological recovery. Current literature indicates that sleep dysfunction in Long COVID is likely multifactorial, arising from biological, behavioural, and autonomic pathways and may play a key role in shaping daily functioning and long‑term recovery trajectories. This provides a strong rationale for examining insomnia‑related behavioural processes as potential mechanistic contributors to Long COVID symptom burden and as targets for intervention.

94% of Loughborough’s research impact is rated world-leading or internationally excellent. REF 2021

Key highlights

  • Investigates insomnia-related behavioural processes as drivers of Long COVID symptom severity
  • Integrates biological, behavioural and autonomic pathways underlying post-viral sleep dysfunction
  • Explores the bidirectional relationship between sleep and prolonged post-viral symptoms
  • Examines sleep behaviours as potential targets for Long COVID intervention
  • 94% of research impact rated world-leading or internationally excellent (REF 2021)

Entry requirements

  • Degree: 2:1 — 2:1

Scholarships

  • Alumni Bursary

    10% of tuition fees which will be credited to the student’s tuition fee account.

    Up to 10% of fees

  • Alumni Discount

    UK students: £1,500 tuition fee discount for one academic year. International students: £3,000 tuition fee discount for one academic year.

  • Care Leaver's Scholarship

  • Excellence Scholarships

    UK students: £3,000 off tuition fees; International students: £6,000 off tuition fees which will be credited to the student’s tuition fee account.

  • International Sports Student Postgraduate Bursary

    Our International Sports Student Postgraduate Bursary offers a £12,000 tuition fee discount (set against the tuition fees of your chosen postgraduate taught programme ONLY).

    Up to £12,000

  • London 10th Anniversary Award

    £5,000 off tuition fees.

    Up to £5,000

  • Loughborough Business School Scholarship

    £1,500 (UK students) and £3,000 (international students) off tuition fees which will be credited to the student’s tuition fee account.

  • MBA Progress with Purpose Scholarship

    50% of tuition fees which will be credited to the student’s tuition fee account.

    Up to 50% of fees

  • Qatari Ghanim Al-Muftah Excellence Scholarship

Careers this course leads to

  • Postdoctoral Research Fellow
  • Sleep Scientist
  • Health Psychology Researcher
  • University Lecturer
  • Clinical Research Scientist
  • Public Health Researcher

Cost of study

UK/Home: £5,238 | International: £29,500

Admission

Applications are made through AHZ at no cost. Share your transcripts, English test scores and personal statement, and your AHZ Counsellor will review your profile, submit your application to Loughborough University, and guide you through interview, offer, CAS and visa — right up to enrolment.

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