World Sleep Congress 2026 Dates, Location & What to Know
World Sleep Congress 2026 was not scheduled as an official World Sleep Congress year. The World Sleep Society normally holds its flagship World Sleep Congress every two years. The previous congress, World Sleep 2025, took place in Singapore from September 5–10, 2025, while the next official congress is scheduled for September 10–15, 2027, in Montreal, Canada.
This makes 2026 an important transition year for the global sleep medicine community. Although there was no main World Sleep Congress in 2026, sleep researchers, clinicians, and professionals continued to participate in international sleep meetings, endorsed conferences, research events, and educational programs throughout the year.
World Sleep Congress 2026: Dates and Location
There were no official World Sleep Congress 2026 dates or location because the World Sleep Society’s flagship congress was not scheduled for 2026. The organization describes the World Sleep Congress as normally occurring every two years.
The previous edition was held in Singapore from September 5–10, 2025, and the next edition is planned for September 10–15, 2027, in Montreal, Canada.
| World Sleep Congress detail | Information |
| 2026 World Sleep Congress | No official congress scheduled |
| Previous congress | World Sleep 2025 |
| 2025 location | Singapore |
| 2025 dates | September 5–10, 2025 |
| Next congress | World Sleep 2027 |
| 2027 dates | September 10–15, 2027 |
| 2027 location | Montreal, Canada |
| Organizer | World Sleep Society |
| Congress frequency | Normally every two years |
Is There a World Sleep Congress in 2026?
No. World Sleep Congress 2026 was not an official edition of the World Sleep Congress.
The World Sleep Society’s congress history lists World Sleep 2025 as the 18th World Sleep Congress and identifies Montreal as the location for the 19th World Sleep Congress in 2027. Therefore, there is no separate 2026 edition between the Singapore and Montreal congresses.
However, 2026 still included numerous sleep-related conferences and educational meetings around the world. These included meetings endorsed or recognized by the World Sleep Society and conferences organized by national and regional sleep organizations.
Why Was There No World Sleep Congress 2026?
The main reason is the congress’s biennial schedule. Unlike an annual conference, the World Sleep Congress is generally organized every two years.
World Sleep 2025 was held in Singapore as the 18th edition. The following edition was then scheduled for Montreal in 2027. Consequently, 2026 falls between the two flagship congresses.
This schedule allows the World Sleep Society and its program committees to prepare a large international scientific meeting while maintaining other educational and professional activities between congress years.
World Sleep Congress 2025 vs. World Sleep Congress 2026
Understanding the difference between the two years is useful when searching for World Sleep Congress information.
| Feature | World Sleep 2025 | World Sleep 2026 |
| Official World Sleep Congress | Yes | No |
| Edition | 18th | — |
| Dates | September 5–10, 2025 | — |
| Location | Singapore | — |
| Main organizer | World Sleep Society | — |
| Scientific program | Yes | No flagship congress |
| Next official congress | 2027 | 2027 |
| Next location | Montreal, Canada | Montreal, Canada |
World Sleep 2025 featured a major international scientific program with research presentations, courses, symposia, oral abstracts, and other educational sessions. The World Sleep Society subsequently made many 2025 sessions available through its Learning Center.
What Is the Next World Sleep Congress After 2026?
The next official event is World Sleep 2027, scheduled for September 10–15, 2027, in Montreal, Canada.
It will be the 19th World Sleep Congress and is expected to bring together international sleep researchers, physicians, clinicians, trainees, and other professionals working in sleep and circadian science.
The World Sleep Society has already announced the Montreal dates and location and has begun preparing the scientific program.
World Sleep Congress 2027 Dates
The official dates for World Sleep 2027 are September 10–15, 2027.
The congress will take place over six days, with the program covering both scientific and educational activities.
World Sleep Congress 2027 Location
The next World Sleep Congress will be held in Montreal, Quebec, Canada.
Montreal is scheduled to host the international sleep community for the 19th edition of the World Sleep Congress.
World Sleep Congress 2026 Alternatives
Even though there was no flagship World Sleep Congress in 2026, professionals interested in sleep medicine could attend other international and regional meetings.
The World Sleep Society’s endorsed-meeting calendar includes conferences covering sleep medicine, sleep research, circadian health, restless legs syndrome, sleep surgery, and related specialties.
Examples listed for 2026 include:
- ASSM Interim Meeting 2026 in Hong Kong
- International Sleep Medicine Course in Newcastle, United Kingdom
- International RLS State of the Science Conference in Washington, D.C.
- Sleep Europe Congress 2026 in Maastricht, Netherlands
- India Sleep 2026 in Puducherry, India
- Sleep DownUnder 2026 in Brisbane, Australia
- The Sleep Congress in Lyon, France
- Brazilian Sleep Congress in São Paulo, Brazil
These events are separate from the official World Sleep Congress, although some are endorsed or recognized through World Sleep Society programs.
What Happened at World Sleep 2025?
World Sleep 2025 was the most recent completed World Sleep Congress before the 2026 gap.
The 18th World Sleep Congress took place in Singapore from September 5–10, 2025. The event brought together researchers, clinicians, trainees, and other health professionals from around the world.
The program covered a broad range of sleep science and medicine, including:
- Narcolepsy
- Idiopathic hypersomnia
- Obstructive sleep apnea
- Insomnia
- Circadian rhythm disorders
- Sleep and cognition
- Pediatric sleep medicine
- Parasomnias
- Sleep technology
- Pharmacology
- Neurological disorders
- Sleep health
- Basic and clinical sleep research
The World Sleep Society reported that World Sleep 2025 included more than 350 hours of content.
World Sleep Congress 2026 and Sleep Research
The absence of a flagship congress in 2026 does not mean that sleep research stopped. Sleep medicine research continued through journal publications, clinical trials, academic meetings, regional conferences, and other scientific events.
Major research areas continued to include sleep apnea, narcolepsy, hypersomnolence disorders, insomnia, circadian biology, sleep-related neurological disorders, pediatric sleep, sleep technology, and the relationship between sleep and overall health.
Researchers also continued presenting new findings at specialty meetings throughout 2026.
World Sleep Congress 2026 and the World Sleep Society
The World Sleep Society is the organization behind the World Sleep Congress. Its activities extend beyond the flagship congress itself.
Between congress editions, the organization supports international collaboration, sleep education, research initiatives, professional resources, and endorsed meetings.
This means people searching for World Sleep Congress 2026 should not assume that every sleep conference held during 2026 was part of the World Sleep Congress. Individual meetings can be separate events even when they focus on similar scientific topics.
Is World Sleep Congress 2026 Cancelled?
It is more accurate to say that there was no World Sleep Congress scheduled for 2026, rather than describing it as a cancelled congress.
The official schedule places the 18th congress in Singapore in 2025 and the 19th congress in Montreal in 2027. There is therefore no official 2026 edition between them.
This distinction matters because searches for “World Sleep Congress 2026” can otherwise create confusion between the flagship congress and other sleep conferences taking place during 2026.
World Sleep Congress 2026 Online
There is no separate official World Sleep Congress 2026 recording library because there was no 2026 flagship congress.
However, people looking for World Sleep educational material can access recordings from World Sleep 2025 through the World Sleep Society Learning Center. The available content includes scientific sessions, symposia, oral abstract sessions, and courses.
The next major in-person World Sleep Congress is World Sleep 2027 in Montreal.
World Sleep Congress 2026: What Researchers Should Know
Researchers planning around the World Sleep Congress calendar should use 2027 rather than 2026 for the next flagship congress.
World Sleep 2027 has already been announced for Montreal, and the scientific-program preparation includes symposium and abstract submission timelines.
For researchers, clinicians, and trainees, checking the official World Sleep Congress website is important because submission deadlines and program information can change as the event approaches.
World Sleep Congress 2026 vs. World Sleep 2027
The most important distinction is simple: 2026 is not a World Sleep Congress year, while 2027 is.
World Sleep 2027 will be the next numbered World Sleep Congress and is scheduled to take place in Montreal from September 10–15, 2027.
People searching for registration information, abstract submissions, symposium proposals, keynote speakers, or the official scientific program should therefore look for World Sleep 2027 rather than a nonexistent 2026 edition.
World Sleep Congress 2026: Quick Answer
World Sleep Congress 2026 was not scheduled as an official World Sleep Congress. The World Sleep Society normally holds the congress every two years. The most recent edition was World Sleep 2025 in Singapore, held September 5–10, 2025.
The next official congress is World Sleep 2027, scheduled for September 10–15, 2027, in Montreal, Canada. It will be the 19th World Sleep Congress.
Conclusion
The key fact about World Sleep Congress 2026 is that there was no official flagship congress in 2026. The World Sleep Society’s congress cycle placed the 18th World Sleep Congress in Singapore in September 2025, followed by the 19th World Sleep Congress in Montreal, Canada, from September 10–15, 2027.
For anyone researching World Sleep Congress dates, registration, abstracts, speakers, or scientific sessions, World Sleep 2027 is the relevant upcoming congress. Meanwhile, 2026 remained an active year for sleep medicine through other international and regional conferences, research meetings, and educational programs.
FAQs
Was there a World Sleep Congress in 2026?
No. The official World Sleep Congress was not scheduled for 2026. The previous congress was held in Singapore in 2025, and the next is scheduled for Montreal in 2027.
Where was World Sleep Congress 2026 held?
There was no official World Sleep Congress location in 2026. The next congress location is Montreal, Canada, in September 2027.
When is the next World Sleep Congress?
The next World Sleep Congress is scheduled for September 10–15, 2027.
Where will World Sleep Congress 2027 be held?
World Sleep 2027 will be held in Montreal, Canada.
What was the last World Sleep Congress?
The last completed congress was World Sleep 2025, held in Singapore from September 5–10, 2025.
How often is the World Sleep Congress held?
The World Sleep Society says the congress is normally held every two years.
Can I watch World Sleep 2025 sessions online?
Yes. The World Sleep Society Learning Center provides access to available World Sleep 2025 recordings, including scientific sessions and courses.
Are there sleep conferences in 2026?
Yes. Numerous regional, national, specialty, and endorsed sleep meetings took place or were scheduled during 2026. These should not be confused with the official World Sleep Congress.
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Ryan Foster is a curious and dedicated professional with an interest in digital content, lifestyle, and online research. He enjoys exploring useful ideas, learning about new topics, and sharing practical information with others. Ryan values continuous learning, creativity, and building meaningful connections through the digital world.
