Sleep disruption is one of the most commonly reported and most persistent withdrawal symptoms — for some people, it outlasts every other symptom by weeks.
Why it happens
Opioids affect the same brain systems involved in regulating sleep and arousal. Removing them disrupts this regulation, on top of the physical discomfort (aches, restlessness) that makes falling asleep harder in the first place.
What tends to help
- Consistent sleep timing, even when sleep itself is poor — going to bed and waking at the same time helps recalibrate faster than an inconsistent schedule
- Limiting screens and stimulation before bed — a common recommendation, though its effect during acute withdrawal is modest compared to the underlying physiological disruption
- Physical comfort measures for co-occurring restless legs or aches — see those specific pages
- Treating the underlying withdrawal — medication for opioid use disorder addresses this far more effectively than managing sleep symptoms in isolation
What to be cautious about
Over-the-counter sleep aids and antihistamines are commonly reached for during this period; talk to a doctor before combining anything with other withdrawal-related medications, especially if you’re also taking anything else that causes sedation.
How long this typically lasts
Sleep problems can persist for weeks after acute withdrawal resolves, as part of post-acute withdrawal syndrome (PAWS). [PAWS article] This doesn’t mean something is wrong — it’s a documented, common pattern.
Medically reviewed by [pending]. Sources: SAMHSA TIP 63.