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What's the link between sleep and bipolar disorder?

Last updated: October 15, 2026

Sleep disruption is both a likely trigger and an early-warning sign of bipolar episodes. Sleep disturbance is the most consistent early symptom of mania, while early signs of depressive episodes vary more from person to person.

The trigger relationship

Reviews describe sleep disturbance as a contributor to relapse in bipolar disorder, with a two-way link: unstable mood disrupts sleep, and lost sleep makes mood harder to regulate the next day (Harvey, 2008). Keeping sleep stable is a core part of treatment.

As an early warning

In a systematic review of 17 studies, sleep disturbance was the most robust early symptom of mania, reported by a median of 77% of people (Jackson et al., 2003). A sudden drop in how much sleep you feel you need is a classic warning sign, which is why many patients and clinicians track sleep.

Treatment

Interpersonal and Social Rhythm Therapy (IPSRT) aims to stabilize daily routines, including sleep. In a trial, people who received it went longer without a new mood episode and had more regular daily rhythms (Frank et al., 2005). If you live with bipolar disorder, discuss sleep changes with your clinician.

Sources

1. Matthew Walker, Why We Sleep (Scribner, 2017). Why We Sleep: Unlocking the Power of Sleep and Dreams
2. Harvey, American Journal of Psychiatry, 2008. Sleep and circadian rhythms in bipolar disorder: seeking synchrony, harmony, and regulation
3. Jackson, Cavanagh & Scott, Journal of Affective Disorders, 2003. A systematic review of manic and depressive prodromes
4. Frank et al., Archives of General Psychiatry, 2005. Two-year outcomes for interpersonal and social rhythm therapy in individuals with bipolar I disorder