Links

Web Resources on Delayed Sleep Phase Syndrome

• Dspsinfo.org

Summary of Links from the Delayed Sleep Phase Syndrome Page

• Sleep Medicine Home Page: This is a long list of links to many other sleep-related sites on the Internet, and gives sleep disorder clinics listed by country and region.
• Sleep Disorders Guide
• "Sleep and the Teenager" - article about sleep phase preferences and sleep deprivation
• ShiftWork Systems Circadian Lighting Technology
• National Sleep Foundation
• Light therapy web pages: These pages are about light therapy for seasonal affective disorder (SAD), but are also relevant to DSPS. They include links to the Internet sites of equipment manufacturers and distributors.
  • Winter Depression (SAD) Information
  • Seasonal light Homepage
  • Internet Mental Health: Seasonal Affective Disorder
• Insomnia, University of Chicago Health Services
• The Miracle of Melatonin: Fact, Fancy, and Future from Chemistry and Industry News
• Depression FAQ
• Depression and Sleep Apnea
• Diagnosing and Treating Sleep Disorders from the National Jewish/University of Colorado Sleep Disorders Center.
• Self-scoring quiz: could you have sleep apnea?
• Sleep Apnea FAQ
• Narcolepsy: The Stanford Center for Narcolepsy
• Pulmonary Diagnostics and Consulting Sleep Questionnaire

Circadian rhythms - disorders and research

• Society for Light Treatment and Biologicial Rhythms
• Circadian Information Home Page
• San Diego Sleep and Rhythms Society

Networking , Support, and Advocacy

• Circadian Sleep Disorders Association
• Mailing list for night owls:

  "This list, niteowl, is a place for people whose circadian rhythms don't quite match up with the rest of society. We're night owls. We like to get up late and stay up late. We aren't any lazier than anyone else; we just find it difficult to function at times when our body clock tells us we should be sleeping. On this list we can vent about bosses who expect us to come in for 7:00 am breakfast meetings, sports competitions with 7:30am starting times, "flex" hours that aren't truly flexible, and other such facts of night owl life. We can also share tips for coping, medical info, and job leads for workplaces that treat night owls well. :)"

  To subscribe, write to majordomo@slumberland.org with nothing in the body of the message except "SUBSCRIBE niteowl yourname" without quotation marks.
• Newsgroup: alt.support.sleep-disorder
• "The Pit: Early to School." Story of three teenagers, their alarm clocks, and the suggestion that school should start later.
• The Sleep Well. Sleep disorders advocacy and current events.
• The National Sleep Foundation
• Sleep/Wake Disorders Canada

Selected Printed Literature

Considering how common DSPS is, there is not much literature about it. At the same time, there is enough to keep you busy for a while. If you have DSPS, read as much as you can about it because the more you understand it, the more control you will have over your life.

Books

1. Ferber, Richard. Solve Your Child's Sleep Problems. New York: Simon and Schuster, 1985. This book for parents is available in many bookstores and public libraries.
2. Coleman, Richard M. Wide Awake at 3:00 a.m. By Choice or By Chance? New York: W.H. Freeman and Company, 1996.
3. Wagner, D. "Delayed Sleep Phase Syndrome" Handbook of Sleep Disorders. Ed. Michael J. Thorpy. New York: Dekker, 1990, pp. 498-504. Very clear and sometimes funny. There are also several other chapters about circadian rhythms and the other circadian rhythm disorders.
4. Lamberg, Lynne. Bodyrhythms - Chronobiology and Peak Performance. New York: William Morrow and Company, Inc., 1994.
5. Principles and Practice of Sleep Medicine in the Child. Ferber, R. and Kryger, M., eds. Philadelphia: W.B. Saunders Company, 1995.

Journals

Most of these references are for a medical audience. Nearly all, however, discuss the impact of DSPS on people's lives, as well as just giving clinical descriptions. The more technical ones are marked with an asterisk * or two **. The journals listed here are easier to find in university biomedical libraries and in hospital libraries than in public libraries

1. *Weitzman, E.D. Czeisler, CA et al., "Delayed sleep phase syndrome: a chronobiological disorder with sleep-onset insomnia" Archives of General Psychiatry 1981, Vol 38: pp 737-746.
2. *Czeisler, C.A. et al. "Chronotherapy: resetting the circadian clocks of patients with delayed sleep phase insomnia" Sleep 1981, Vol 4: pp 1-21.
3. *Thorpy, M.J. et al. "Delayed sleep phase syndrome in adolescents" Journal of Adolescent Health Care January 1988, Vol 9: pp 22-27.
4. Vanderpool, J. "Delayed sleep phase syndrome revisted: preliminary effects of light and Triazolam." Sleep Research 1988, Vol 17: p 381.
5. DeBeck, T.W. "Delayed sleep phase syndrome - criminal offense in the military?" Military Medicine January 1990, Vol 155: pp 14-15.An American marine with DSPS was court-martialled for "failure to go" due to his symptoms.
6. **Rosenthal, N.E. "Phase-shifting effects of bright morning light as treatment for delayed sleep phase syndrome." Sleep 1990, Vol 13 (4): pp 354-361.
7. **Okawa, M. et al "Vitamin B12 treatment for sleep-wake rhythm disorders" Sleep 1990 Vol 13(1): pp 15-23.
8. Dahl, R.E. et al. "The role of sleep disturbances in attention-deficit disorder symptoms: a case study" Journal of Pediatric Psychology April 1991, Vol 16: pp 229-39.
9. *Alvarez, B. et al "The delayed sleep phase syndrome: clinical and investigative findings in 14 subjects" Journal of Neurology, Neurosurgery, and Psychiatry 1992, Vol 55: pp 665 - 670.
10. Patten, S. and Lauderdale, M., "Delayed sleep phase syndrome after traumatic brain injury" Journal of the American Academy of Child and Adolescent Psychiatry Jan 1992, Vol 31: pp 100-102.
11. *"When the body clock goes wrong: delayed sleep phase syndrome" Lancet Oct. 10, 1992, Vol 340: p 884.
12. **Ohta, T. et al. "Daily activity and persistent sleep-wake schedule disorders" Progress in Neuro-Psychopharmacology and Biological Psychiatry 1992 Vol 16: pp 529.
13. Carskadon, M.A. et al. "Association between puberty and delayed phase preference." Sleep 1993 Vol 16 (3) pp 258-262.
14. Jan, J.E., et al. "The treatment of sleep disorders with melatonin" Developmental Medicine and Child Neurology 1994, Vol 36: pp 97-107.
15. Regestein, Q. et al . "Treatment of delayed sleep phase syndrome" General Hospital Psychiatry 1995 Vol 17: pp 335-345.
16. *Regestein, Q. and T.H. Monk. "Delayed sleep phase syndrome: a review of its clinical aspects." American Journal of Psychiatry April 1995, Vol 152 (4): pp 602-608.
17. **Light Treatment for Sleep Disorders: Consensus Report."Journal of Biological Rhythms, Vol. 10 No. 2, June 1995.
18. **Dawson, D. and S.M. Armstrong. "Chronobiotics - Drugs That Shift Rhythms" Pharmacology and Therapeutics 1996, Vol 69 (1): pp. 15 - 36.
19. *Lewy, A. et al. "Phase shifting the human circadian clock using melatonin." Behavioural Brain Research 1996, Vol 73: pp 131 - 134.

Searching for More Information

Subjects

"Delayed sleep phase syndrome" is not yet a subject in most directories. Try:

• circadian rhythms
• insomnia
• sleep-onset insomnia
• light therapy
• biological rhythms
• sleep/wake cycle
• melatonin

"Chronotherapy" is a term used for many other unrelated things, including cancer treatments.

Keywords

• delayed sleep
• sleep phase

Synonyms for DSPS

DSPS is the most widely used term. You may also find it listed as

• delayed sleep phase insomnia
• delayed sleep phase disorder
• circadian rhythm sleep disorder - delayed sleep phase type
• late sleep phase
• sleep/wake schedule disorder
• sleep phase delay syndrome

Synonyms for non 24-hour sleep/wake syndrome

• hypernychthemeral syndrome
• hypernyctohemeral syndrome