Saudi Arabia
Riyadh Sleep Guide
A cross-sectional study of 548 adults in Riyadh, using the validated Athens Sleep Questionnaire, found an insomnia prevalence of 54.4% — a genuine, direct, city-specific sleep-outcome survey, which is rarer among the cities on this hub than noise or light pollution proxy data.
Riyadh's Daylight & Circadian Rhythm
Real-time, computed directly from Riyadh's coordinates — not a static or estimated figure. Latitude determines how much a city's daylight hours shift across the year, which is one of the environmental cues circadian researchers link to sleep-wake timing; the wider the swing, the bigger the seasonal adjustment a city's residents' body clocks have to make. See the comparison section below for how Riyadh's specific swing stacks up against the other cities on this hub.
Today's sunrise
05:40
Today's sunset
17:53
Seasonal daylight swing
10.6h – 13.67h
Computed directly from Riyadh's latitude/longitude using standard solar position equations — a 3.1-hour swing between shortest and longest day of the year.
Light Pollution in Riyadh
We were not able to verify a Riyadh-specific quantified light pollution or Bortle-scale figure from a credible source, so we're noting that gap directly rather than estimating one — Riyadh's documented environmental health research focus is concentrated on sandstorm exposure and general air quality rather than night sky brightness measurement. Respiratory and general health complaints in subjects exposed to sandstorm at Riyadh, PMC
Sleep Data for Riyadh
A cross-sectional study of 548 adults in Riyadh, using the validated Athens Sleep Questionnaire, found an insomnia prevalence of 54.4% — a direct, city-specific sleep-outcome survey with a real, defined sample size and validated measurement instrument. Prevalence and Associated Risk Factors of Insomnia Among Adults in Riyadh, Saudi Arabia, PMC
Riyadh-Specific Sleep Disruptors
Nighttime exercise timing is specifically linked to poor sleep in Riyadh research
A cross-sectional study of 385 people exercising at Riyadh gyms and training facilities found most participants exercised in the evening and reported poor sleep quality, examined specifically in relation to exercise timing — a genuinely local behavioral finding rather than a generic exercise-and-sleep claim.
Internet and smartphone use shows a strong, statistically significant link to poor sleep
A study of health sciences students across two Riyadh universities found 74.2% of normal internet users were classified as poor sleepers, rising to 88.5% among those with moderate-to-severe internet addiction, using the validated Pittsburgh Sleep Quality Index and finding a highly statistically significant association.
COVID-19-era research documented elevated sleep disturbance alongside anxiety and depression
A cross-sectional study during the COVID-19 outbreak specifically assessed sleep disturbance prevalence in Riyadh alongside anxiety and depression, using validated psychological assessment tools, adding a documented pandemic-era data point to the city's broader sleep research base.
How Sleep in Riyadh Compares
Riyadh's 54.4% insomnia prevalence figure, from a validated questionnaire administered directly to residents, is one of the more genuinely sleep-outcome-focused statistics on this hub, closer in kind to Copenhagen's sleep-quality cohort finding than to the noise-exposure or light-pollution proxies used for most other cities here.
Practical Sleep Tips for Riyadh Residents
- 1.Given the real, city-specific finding of 54.4% insomnia prevalence in Riyadh, know that experiencing sleep difficulty here is genuinely common, not an individual anomaly — it may be worth discussing with a healthcare provider rather than assuming it's just normal city stress.
- 2.If you exercise at night, local Riyadh research specifically found evening exercisers reported poorer sleep quality — consider shifting workout timing earlier in the day if sleep is a concern for you.
- 3.Given the strong, statistically significant link found between internet/smartphone use and poor sleep in local research, an evening screen-time cutoff is a particularly well-evidenced intervention for Riyadh residents specifically.
- 4.Since we don't have verified Riyadh-specific light pollution data, general good practice (blackout curtains, consistent evening light-dimming) is a reasonable default given the region's intense daytime light and heat.
- 5.Riyadh's relatively low latitude (24.7°N) means a more moderate seasonal daylight swing than higher-latitude cities on this hub, though extreme heat remains a distinct, well-documented regional environmental factor.
- 6.Riyadh does not observe Daylight Saving Time, so no seasonal clock-change adjustment is needed for your sleep schedule.
What This Page Doesn't Establish
Riyadh's sleep-outcome survey data is genuinely direct and city-specific, unlike many cities on this hub that rely on environmental proxies — but we could not verify a Riyadh-specific light pollution figure, and are stating that gap directly rather than estimating one.
Frequently Asked Questions About Sleep in Riyadh
How common is insomnia in Riyadh, based on real data?+
A cross-sectional study of 548 adults in Riyadh, using the validated Athens Sleep Questionnaire, found an insomnia prevalence of 54.4% — a notably high figure from a direct, city-specific sleep survey.
Does nighttime exercise actually affect sleep quality in Riyadh?+
Yes — a study of 385 people at Riyadh gyms and training facilities found most exercised in the evening and reported poor sleep quality, examined specifically in relation to exercise timing.
Is there a real link between smartphone use and sleep problems in Riyadh?+
Yes, a strong one — a study of health sciences students in Riyadh found 74.2% of normal internet users were poor sleepers, rising to 88.5% among those with moderate-to-severe internet addiction, a highly statistically significant association.
Is there real light pollution data for Riyadh?+
We could not verify a Riyadh-specific quantified light pollution or Bortle-scale figure from a credible source, and we're saying so directly rather than presenting an unverified estimate.
Did COVID-19 affect sleep in Riyadh specifically?+
Yes — a cross-sectional study during the COVID-19 outbreak specifically assessed sleep disturbance prevalence in Riyadh alongside anxiety and depression, using validated psychological assessment tools.
How does Riyadh's insomnia data compare to other cities on this hub?+
Riyadh's 54.4% figure is one of the more directly sleep-outcome-focused statistics referenced on this hub, using a validated questionnaire administered to residents rather than an indirect environmental proxy like noise exposure or housing prices.
Does Riyadh observe Daylight Saving Time?+
No — Riyadh does not observe DST, so residents don't need to account for seasonal clock changes.
What's Riyadh's daylight pattern like compared to higher-latitude cities?+
At 24.7°N, Riyadh has a more moderate seasonal daylight swing than higher-latitude cities like Copenhagen or Vancouver, though extreme heat is a distinct, well-documented regional environmental factor separate from daylight duration.
Are there other Saudi cities with comparable sleep research?+
Yes — broader Saudi studies on sleep patterns and napping have also surveyed residents in Jeddah, Makkah, and Taif, though the Riyadh-specific insomnia prevalence study referenced here is unique in its direct city-level focus and sample size.
What's the single most Riyadh-specific sleep insight from this page?+
That the city has a real, direct, validated sleep-outcome survey — a 54.4% insomnia prevalence figure from 548 adults — which is a more genuinely sleep-specific data point than the noise or light-pollution proxies most other cities on this hub rely on.
The Bottom Line for Riyadh
Riyadh has something genuinely uncommon among the newer additions to this hub: a real, direct, city-specific sleep-outcome survey (54.4% insomnia prevalence using a validated questionnaire) rather than an indirect proxy like noise-annoyance or housing prices. Combined with specific research on nighttime exercise timing and internet-use patterns, Riyadh has an unusually behavior-focused body of local sleep research, even without a verified light pollution figure to pair with it.
Calculate Your Own Sleep Debt in Riyadh
The data above is environmental context — your own sleep debt depends on your actual sleep, not a city average.
Calculate your sleep debtSources for This Page
- Respiratory and general health complaints in subjects exposed to sandstorm at Riyadh, PMC — light pollution data
- Prevalence and Associated Risk Factors of Insomnia Among Adults in Riyadh, Saudi Arabia, PMC — sleep survey data (city-level)
Sunrise, sunset, and seasonal daylight figures on this page are computed directly from Riyadh's coordinates using standard solar position equations, not sourced from a third party.