For most adults who are new to edibles, the top pick for sleep is a 2.5 mg THC gummy taken 60 to 90 minutes before bed. The criteria that matter are onset time, duration of effect, your THC tolerance, and the legal per-serving limit in your state. If you already use cannabis daily, a 5 mg or 10 mg serving may fit better. The sections below break down each dosage tier with pros, cons, and a use case.
Option 1: 2.5 mg THC
This is the standard starting point for cannabis gummies dosage for sleep. Most state regulators treat 2.5 mg as half of a standard serving, which makes it easy to test your response without committing to a full dose.
- Pros: Low risk of next-day grogginess. Lets you test sensitivity before taking more. Matches the low end of per-serving limits in legal states.
- Cons: May be too weak if you have a tolerance. You may need two nights to judge the effect. Some gummies are not scored, so splitting is imprecise.
Best for: first-time edible users, older adults, and anyone taking medications that interact with THC.
Cannabis Gummies Dosage Calculator: How to Find the Right Dose
Option 2: 5 mg THC
Five milligrams is a moderate serving. It is the most common single-serving size in legal dispensaries. For sleep, it can produce stronger sedation than 2.5 mg without pushing most users into heavy impairment.
- Pros: Common sweet spot for occasional users. Stronger sedation for people who struggle to fall asleep. Easier to find in single-serving packages.
- Cons: Can cause grogginess if you wake early. Higher risk of anxiety or racing thoughts. Tolerance builds faster than with 2.5 mg.
Best for: people who have used edibles a few times and did not get relief from 2.5 mg.
Option 3: 10 mg THC
Ten milligrams is the legal maximum per serving in several states, including Washington. It is a high dose for sleep and not a starting point.
- Pros: Strong sedative effect for heavy tolerance. Fewer gummies needed per dose. Useful if you have used 5 mg without effect.
- Cons: High risk of impairment the next morning. Can trigger paranoia or rapid heart rate. Not suitable for beginners or people who must drive early.
Best for: daily users with a known high tolerance and no morning obligations.
Option 4: THC with CBD or CBN
CBN is a minor cannabinoid often marketed for sleep, but research on it is limited. CBD may reduce anxiety, which can help with sleep onset. Many sleep-focused gummies combine 1 part THC with 1 to 5 parts CBD or CBN.
- Pros: CBD may soften the psychoactive edge of THC. CBN is often paired with THC in sleep-specific products. Ratios let you tune the effect.
- Cons: CBN research is thin. Combined products cost more per milligram. Effects vary from person to person.
Best for: people who want to lower THC while keeping a sleep-focused routine.
Timing and safety
Edibles take 30 to 120 minutes to peak. Do not take more if you feel nothing after 30 minutes. Wait two hours. The effects can last six hours or more. Set an alarm if you must wake early. Check your state's per-serving limit. Many states cap THC at 10 mg per serving. Do not mix cannabis gummies with alcohol or prescription sleep medications without talking to a clinician. If you are pregnant, breastfeeding, or under 21, avoid THC edibles.