Sleep-phase advance

Domain IX · Biomedical, neuro & digital · Wehr, Wirz-Justice, Goodwin · 1979

What it is

For a few days the team moves the patient's sleep period earlier than usual, then moves it back step by step to the usual time. In the studies the shift and the return were done by the team on a fixed schedule. Patients did not choose their own times. Sleep-phase advance as an antidepressant is…

Format

• Stage 0 – Selection and assessment (team-led). Goal: decide whether chronotherapy is suitable and safe. The SLaM feasibility protocol excluded, among others: a history of bipolar disorder, schizophrenia or schizoaffective disorder; significant suicide risk requiring hospitalisation; epilepsy,…
• Stage 2 – Sleep-phase advance (team-led). Sleep is moved earlier and then returned to the usual time step by step, over a short block of days. The published versions (Voderholzer et al. 2003; Riemann et al. 1999; SLaM, with group-supported wakefulness) differ in how the advance and the return are…

Who practises it, and how they are trained or regulated

• Regulatory and evidence status. As of October 2026: SPA is a schedule manipulation, not a drug or device, so it has no product licence. The light-therapy component used in triple chronotherapy uses a light device; see the light-therapy entries for eye-safety and switch cautions. The ISAD chronotherapeutics guidelines page presents the 2009 manual as its treatment guidance and lists SPA alongside light and wake…

Evidence status, as the guide reports it

• Stage 0 – Selection and assessment (team-led). Goal: decide whether chronotherapy is suitable and safe. The SLaM feasibility protocol excluded, among others: a history of bipolar disorder, schizophrenia or schizoaffective disorder; significant suicide risk requiring hospitalisation; epilepsy,…

Questions to explore with your client

• What drew you to it, and what are you hoping it will change?
• Is there physical contact? Was it explained beforehand, and do you feel free to say no or stop at any point?
• Does it involve any substance, plant preparation, remedy or supplement? Has your doctor or prescriber been told, especially about any medication you take?
• Does it involve fasting, a special diet or 'detox'? Have you discussed this with your doctor?
• Is it a group, retreat or community? How do they respond if someone wants to leave or raises a concern?
• Who runs it, and what training or registration do they hold?
• What actually happens in a session or meeting, and how often?
• What does it cost, and is there pressure to commit to more?
• How do you feel afterwards, in the hours and days that follow?
• Does it fit with, or clash with, the work we do here?

What practitioners of it watch for

• hopelessness following an early response that has faded.
• self-blame, or the belief that the treatment "proved" the depression is untreatable.
• a slow drift back to late, irregular sleep; returning depressive symptoms; any hypomanic signs.
• contradictory sleep messages from different clinicians; a sleep-restriction component starting too soon after the block.
• a quick lift that turns into euphoria, which is not the same as recovery; relapse into low mood around days 2–5 of the advance.

When to involve someone else

• New or worsening physical symptoms, or advice to stop or change prescribed medication: involve the client's doctor or prescriber.
• Signs of coercion, isolation from family and friends, escalating costs or secrecy: discuss openly and consider safeguarding.
• A crisis or thoughts of suicide: follow your crisis protocol. In the US, call or text 988; in the UK and Ireland, Samaritans on 116 123.

Drawn automatically from the guide's own sections. Stay curious: neither endorse nor dismiss what the client values, and check anything that matters against the full guide and its sources. Not medical advice.