Cannabis withdrawal symptoms peaked in days 0-3 but sleep problems got worse over time | Research

The takeaway

During monitored abstinence, most cannabis withdrawal symptoms were worst in the first three days and then improved, but sleep disturbance and strange dreams worsened over time, suggesting persistent sleep problems in chronic users.

Read this if you have quit or are quitting cannabis and are experiencing sleep problems.

Most withdrawal symptoms improved after day 3; sleep problems got worse over time

What the researchers found

Twenty-nine chronic, frequent cannabis smokers were monitored during sustained abstinence on a closed research unit. Most withdrawal symptoms, including irritability and anxiety, were greatest during days 0-3 and decreased afterward. Cannabis craving also significantly decreased over time, and appetite began normalizing by day 4.

However, two sleep-related symptoms moved in the opposite direction: strange dreams and difficulty getting to sleep increased over time rather than improving. This pattern suggests intrinsic sleep problems in chronic cannabis users that emerge as the sedating effects of cannabis wear off.

Symptoms present on admission (likely residual drug effects) were positively correlated with plasma cannabinoid concentrations on day 0 but not afterward, confirming that initial symptoms reflected drug offset rather than withdrawal.

Why it matters

The dissociation between general withdrawal symptoms (improving) and sleep symptoms (worsening) has important clinical implications. Sleep disturbance that gets worse rather than better may drive relapse and may require specific treatment.

The numbers in context

29 participants on admission, 66% remaining at 2 weeks, 34% at 4 weeks. Most symptoms peaked days 0-3. Strange dreams and insomnia increased over time. Appetite began normalizing day 4.

How the study worked

Prospective observational study of 29 non-treatment-seeking chronic cannabis smokers on a closed research unit. Daily computer-administered assessments of psychological, sensory, and physical symptoms. Concurrent plasma and oral fluid cannabinoid measurements. Two-thirds remained after 2 weeks, one-third after 4 weeks.

What this study cannot tell us

High attrition (only 34% remained at 4 weeks). Non-treatment-seeking participants may differ from those motivated to quit. The closed unit environment differs from real-world conditions. No control group of non-users for comparison.

How to read the evidence

Prospective study in a controlled research setting with objective drug level monitoring, though limited by high attrition.

When this study was published

Published in 2014.

The bigger picture

The finding that sleep problems worsen during prolonged abstinence while other symptoms improve explains why many cannabis users relapse specifically to manage sleep. Addressing sleep disturbance as a separate treatment target may be essential for sustained abstinence.

Questions still open

How long do sleep problems persist after quitting? Would sleep medications or CBT for insomnia improve quit outcomes? Do the sleep problems reflect unmasking of pre-existing sleep disorders that were self-medicated with cannabis?

Common questions

When does cannabis withdrawal peak?

Most symptoms (irritability, anxiety, craving) were worst in the first three days and then improved. However, sleep problems (difficulty falling asleep, strange dreams) actually got worse over time rather than better.

Why do sleep problems get worse after quitting cannabis?

The worsening sleep pattern suggests chronic cannabis users may have underlying sleep problems that cannabis was masking. As the drug clears, these problems emerge and may intensify, potentially requiring specific treatment.

Read the original research

Cannabis withdrawal in chronic, frequent cannabis smokers during sustained abstinence within a closed residential environment.

The American journal on addictions, 23(3), 234-42

View on PubMed ↗Publisher’s paper ↗

Citation

Lee, Dayong; Schroeder, Jennifer R; Karschner, Erin L; Goodwin, Robert S; Hirvonen, Jussi; Gorelick, David A; Huestis, Marilyn A. (2014). Cannabis withdrawal in chronic, frequent cannabis smokers during sustained abstinence within a closed residential environment.. The American journal on addictions, 23(3), 234-42. https://doi.org/10.1111/j.1521-0391.2014.12088.x