Non-24-hour sleep-wake syndrome
MONDO:0019137Non-24-hour sleep-wake disorder (non-24 disorder), also known as hypernychthemeral syndrome, is a circadian rhythm sleep disorder characterized by non-synchronization to a 24-hour day leading to insomnia and daytime sleepiness with sometimes severe associated manifestations.
Also known as: Non-24-Hour Sleep-Wake Disorder, circadian rhythm sleep disorder, free running type, circadian rhythm sleep disorder, free-running type, hypernychthemeral syndrome, non-24, non 24 hour sleep wake disorder
30 clinical trials for this condition and its sub-types, 2 tagged with Non-24-hour sleep-wake syndrome itself.
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Sleep clinic study aims to uncover best practices for treating insomnia and body clock disorders
Disease control Recruiting nowThis study follows 3,400 adults referred to a sleep clinic for insomnia or circadian rhythm sleep disorders. Participants receive standard care—such as light therapy, melatonin, and blue-light-blocking glasses—and track their progress through questionnaires and sleep diaries. The…
Sponsor: St. Olavs Hospital • Aim: Disease control
Last updated Jul 22, 2026 00:00 UTC
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Could a headset fix sleep problems in the blind? new trial tests Nerve-Stimulating device
Symptom relief Recruiting nowThis pilot study tests whether a non-invasive headset that delivers mild electrical stimulation to nerves behind the ear can safely improve sleep in adults who are blind or severely sight impaired. Sixty participants will use the device for 30 minutes a day, five times a week for…
Sponsor: Neurovalens Ltd. • Aim: Symptom relief
Last updated Jun 27, 2026 12:07 UTC