Unit outline_

OLET1510: Health Challenges: Sleep and Circadian Rhythms

Semester 2, 2025 [Online] - Camperdown/Darlington, Sydney

Our sleep and circadian rhythms are integral to our health and wellbeing, but they are often at odds with our technology-filled, caffeinefuelled, and 24-hour world. This unit introduces how sleep and circadian rhythms work and their impact on health and society. Examples include sleep deprivation, jetlag, shiftwork, and common sleep and circadian disorders. Students will gain insights into their own sleep and circadian rhythms to help optimise their wellbeing and performance. This entry-level unit of study has been developed by academics in the University's Charles Perkins Centre.

Unit details and rules

Academic unit Northern Clinical School
Credit points 2
Prerequisites
? 
None
Corequisites
? 
None
Prohibitions
? 
None
Assumed knowledge
? 

None

Available to study abroad and exchange students

Yes

Teaching staff

Coordinator Yu Sun Bin, yusun.bin@sydney.edu.au
The census date for this unit availability is 1 September 2025
Type Description Weight Due Length Use of AI
Out-of-class quiz hurdle task Early Feedback Task Week 2 Quiz
Multiple choice questions
5% Week 02 - AI allowed
Outcomes assessed: LO1
Out-of-class quiz hurdle task Week 3 Quiz
Multiple choice questions
10% Week 03 - AI allowed
Outcomes assessed: LO1
Out-of-class quiz hurdle task Week 4 Quiz
Multiple choice questions
10% Week 04 - AI allowed
Outcomes assessed: LO1 LO2
Out-of-class quiz hurdle task Week 5 Quiz
Multiple choice questions
10% Week 05 - AI allowed
Outcomes assessed: LO1 LO2
Out-of-class quiz hurdle task Week 6 Quiz
Multiple choice questions
10% Week 06
Due date: 28 Sep 2025 at 23:59
- AI allowed
Outcomes assessed: LO1 LO2
Out-of-class quiz hurdle task Week 7 Quiz
Multiple choice questions
10% Week 07
Due date: 05 Oct 2025 at 23:59
- AI allowed
Outcomes assessed: LO1 LO2
Out-of-class quiz hurdle task Week 8 Quiz
Multiple choice questions
10% Week 08
Due date: 12 Oct 2025 at 23:59
- AI allowed
Outcomes assessed: LO1 LO2
Out-of-class quiz hurdle task Week 9 Quiz
Multiple choice questions
10% Week 09
Due date: 19 Oct 2025 at 23:59
- AI allowed
Outcomes assessed: LO1 LO2
Out-of-class quiz hurdle task Revision Quiz
Multiple choice questions
10% Week 10
Due date: 26 Oct 2025 at 23:59
- AI allowed
Outcomes assessed: LO1 LO2
Contribution hurdle task Participation
Pre-lecture activities, personal reflections, or online discussions
15% Weekly - AI allowed
Outcomes assessed: LO1 LO2
hurdle task = hurdle task ?
early feedback task = early feedback task ?

Early feedback task

This unit includes an early feedback task, designed to give you feedback prior to the census date for this unit. Details are provided in the Canvas site and your result will be recorded in your Marks page. It is important that you actively engage with this task so that the University can support you to be successful in this unit.

Assessment summary

All assessments must be attempted and completed at a Pass level (50%) to be eligible to pass the unit. 

Assessment criteria

This unit is marked on the basis of Pass / Fail where students are awarded a grade of Satisfied requirements or Failed requirements as set out in this table.

Result name

Mark range

Description

Satisfied requirements 

50 - 100

The learning outcomes of the unit of study have been met to a satisfactory standard, as demonstrated by meeting ALL of the following:  

  • All participation activities and quizzes have been attempted
  • A mark of 50% or higher has been achieved on each quiz (before the application of any late penalty)
  • A total mark of 50% or higher for the unit overall has been achieved (includes the application of any late penalty)
Failed requirements

0 - 49

The learning outcomes of the unit of study have not been met to a satisfactory standard.

For more information see guide to grades.

Use of generative artificial intelligence (AI)

You can use generative AI tools for open assessments. Restrictions on AI use apply to secure, supervised assessments used to confirm if students have met specific learning outcomes.

Refer to the assessment table above to see if AI is allowed, for assessments in this unit and check Canvas for full instructions on assessment tasks and AI use.

If you use AI, you must always acknowledge it. Misusing AI may lead to a breach of the Academic Integrity Policy.

Visit the Current Students website for more information on AI in assessments, including details on how to acknowledge its use.

Late submission

In accordance with University policy, these penalties apply when written work is submitted after 11:59pm on the due date:

  • Deduction of 5% of the maximum mark for each calendar day after the due date.
  • After ten calendar days late, a mark of zero will be awarded.

This unit has an exception to the standard University policy or supplementary information has been provided by the unit coordinator. This information is displayed below:

Late submissions for assessments will receive no marks, unless Special Consideration has been approved.

Academic integrity

The University expects students to act ethically and honestly and will treat all allegations of academic integrity breaches seriously.

Our website provides information on academic integrity and the resources available to all students. This includes advice on how to avoid common breaches of academic integrity. Ensure that you have completed the Academic Honesty Education Module (AHEM) which is mandatory for all commencing coursework students

Penalties for serious breaches can significantly impact your studies and your career after graduation. It is important that you speak with your unit coordinator if you need help with completing assessments.

Visit the Current Students website for more information on AI in assessments, including details on how to acknowledge its use.

Simple extensions

If you encounter a problem submitting your work on time, you may be able to apply for an extension of five calendar days through a simple extension.  The application process will be different depending on the type of assessment and extensions cannot be granted for some assessment types like exams.

Special consideration

If exceptional circumstances mean you can’t complete an assessment, you need consideration for a longer period of time, or if you have essential commitments which impact your performance in an assessment, you may be eligible for special consideration or special arrangements.

Special consideration applications will not be affected by a simple extension application.

Using AI responsibly

Co-created with students, AI in Education includes lots of helpful examples of how students use generative AI tools to support their learning. It explains how generative AI works, the different tools available and how to use them responsibly and productively.

Support for students

The Support for Students Policy reflects the University’s commitment to supporting students in their academic journey and making the University safe for students. It is important that you read and understand this policy so that you are familiar with the range of support services available to you and understand how to engage with them.

The University uses email as its primary source of communication with students who need support under the Support for Students Policy. Make sure you check your University email regularly and respond to any communications received from the University.

Learning resources and detailed information about weekly assessment and learning activities can be accessed via Canvas. It is essential that you visit your unit of study Canvas site to ensure you are up to date with all of your tasks.

If you are having difficulties completing your studies, or are feeling unsure about your progress, we are here to help. You can access the support services offered by the University at any time:

Support and Services (including health and wellbeing services, financial support and learning support)
Course planning and administration
Meet with an Academic Adviser

WK Topic Learning activity Learning outcomes
Week 01 Orientation Independent study (3 hr)  
Week 02 Sleep deprivation Independent study (3 hr) LO1
Week 03 Introduction to normal sleep Independent study (3 hr) LO1
Week 04 Introduction to circadian rhythms Independent study (3 hr) LO1
Week 05 Jetlag Independent study (3 hr) LO1 LO2
Week 06 Shift work Independent study (3 hr) LO1 LO2
Week 07 Measuring sleep and circadian rhythms Independent study (3 hr) LO1 LO2
Week 08 Sleep hygiene and insomnia Independent study (3 hr) LO1 LO2
Week 09 Other sleep and circadian disorders Independent study (3 hr) LO1 LO2
Week 10 Revision Independent study (3 hr) LO1 LO2

Attendance and class requirements

There are no attendance requirements. This is an online-only unit of study.

Study commitment

Typically, there is a minimum expectation of 1.5-2 hours of student effort per week per credit point for units of study offered over a full semester. For a 2 credit point unit, this equates to roughly 40-50 hours of student effort in total.

Required readings

All study materials will be made available online through Canvas.

Learning outcomes are what students know, understand and are able to do on completion of a unit of study. They are aligned with the University's graduate qualities and are assessed as part of the curriculum.

At the completion of this unit, you should be able to:

  • LO1. Describe how the human sleep and circadian systems work and how they affect health and performance.
  • LO2. Explain the relevance of sleep and circadian health for self and selected other demographics; and explain how sleep and circadian health can be optimised for health and performance.

Graduate qualities

The graduate qualities are the qualities and skills that all University of Sydney graduates must demonstrate on successful completion of an award course. As a future Sydney graduate, the set of qualities have been designed to equip you for the contemporary world.

GQ1 Depth of disciplinary expertise

Deep disciplinary expertise is the ability to integrate and rigorously apply knowledge, understanding and skills of a recognised discipline defined by scholarly activity, as well as familiarity with evolving practice of the discipline.

GQ2 Critical thinking and problem solving

Critical thinking and problem solving are the questioning of ideas, evidence and assumptions in order to propose and evaluate hypotheses or alternative arguments before formulating a conclusion or a solution to an identified problem.

GQ3 Oral and written communication

Effective communication, in both oral and written form, is the clear exchange of meaning in a manner that is appropriate to audience and context.

GQ4 Information and digital literacy

Information and digital literacy is the ability to locate, interpret, evaluate, manage, adapt, integrate, create and convey information using appropriate resources, tools and strategies.

GQ5 Inventiveness

Generating novel ideas and solutions.

GQ6 Cultural competence

Cultural Competence is the ability to actively, ethically, respectfully, and successfully engage across and between cultures. In the Australian context, this includes and celebrates Aboriginal and Torres Strait Islander cultures, knowledge systems, and a mature understanding of contemporary issues.

GQ7 Interdisciplinary effectiveness

Interdisciplinary effectiveness is the integration and synthesis of multiple viewpoints and practices, working effectively across disciplinary boundaries.

GQ8 Integrated professional, ethical, and personal identity

An integrated professional, ethical and personal identity is understanding the interaction between one’s personal and professional selves in an ethical context.

GQ9 Influence

Engaging others in a process, idea or vision.

Outcome map

Learning outcomes Graduate qualities
GQ1 GQ2 GQ3 GQ4 GQ5 GQ6 GQ7 GQ8 GQ9

This section outlines changes made to this unit following staff and student reviews.

Minor changes have been made to this unit since it was last taught in Semester 1, 2025.

Disclaimer

The University reserves the right to amend units of study or no longer offer certain units, including where there are low enrolment numbers.

To help you understand common terms that we use at the University, we offer an online glossary.