Uploaded April 2026 | Updated September 2026, 3 weeks ago
If you sleep 7–8 hours and still feel tired… this might explain why. In this video, we explore the psychology behind sleep quality, hidden fatigue, and what your body might actually be trying to tell you. Which part felt the most relatable to you? Mental Health Resources and worksheets will be updated to the shop soon: psych2go.net
Stay tune! But for now...
Further readings you can do on your own when you have time; We highly recommend reading the first one.
1. Sleep quality vs duration (core concept)
Buysse, D. J. (2014). Sleep health: Can we define it? Does it matter? Sleep, 37(1), 9–17. doi.org/10.5665/sleep.3298
2. Why you still feel tired (sleep inertia & fatigue)
Tassi, P., & Muzet, A. (2000). Sleep inertia. Sleep Medicine Reviews, 4(4), 341–353. doi.org/10.1053/smrv.2000.0098
3. Hidden sleep disruption (fragmentation, quality issues)
Medic, G., Wille, M., & Hemels, M. E. H. (2017). Short- and long-term health consequences of sleep disruption. Nature and Science of Sleep, 9, 151–161. doi.org/10.2147/NSS.S134864
4. Vitamin D and sleep quality & mental health
Gao, Q., Kou, T., Zhuang, B., Ren, Y., Dong, X., & Wang, Q. (2018). The association between vitamin D deficiency and sleep disorders: A systematic review and meta-analysis. Nutrients, 10(10), 1395. doi.org/10.3390/nu10101395
Want to collaborate on an idea? Reach out to us at tu@ psych2go.net
Animated by @PancakeStudioZA , Andrew :)
If you sleep 7–8 hours and still feel tired… this might explain why. In this video, we explore the psychology behind sleep quality, hidden fatigue, and what your body might actually be trying to tell you. Which part felt the most relatable to you? Mental Health Resources and worksheets will be updated to the shop soon: psych2go.net
Stay tune! But for now...
Further readings you can do on your own when you have time; We highly recommend reading the first one.
1. Sleep quality vs duration (core concept)
Buysse, D. J. (2014). Sleep health: Can we define it? Does it matter? Sleep, 37(1), 9–17. doi.org/10.5665/sleep.3298
2. Why you still feel tired (sleep inertia & fatigue)
Tassi, P., & Muzet, A. (2000). Sleep inertia. Sleep Medicine Reviews, 4(4), 341–353. doi.org/10.1053/smrv.2000.0098
3. Hidden sleep disruption (fragmentation, quality issues)
Medic, G., Wille, M., & Hemels, M. E. H. (2017). Short- and long-term health consequences of sleep disruption. Nature and Science of Sleep, 9, 151–161. doi.org/10.2147/NSS.S134864
4. Vitamin D and sleep quality & mental health
Gao, Q., Kou, T., Zhuang, B., Ren, Y., Dong, X., & Wang, Q. (2018). The association between vitamin D deficiency and sleep disorders: A systematic review and meta-analysis. Nutrients, 10(10), 1395. doi.org/10.3390/nu10101395
Want to collaborate on an idea? Reach out to us at tu@ psych2go.net
Animated by @PancakeStudioZA , Andrew :)
