The short answer
There is no single number, but there is a sensible starting point. For sleep, most adults should begin at 2.5 to 5 mg of THC per serving. Many settle somewhere between 5 and 10 mg. Going above 10 mg is usually the territory of people who already use THC regularly and know how their body responds. If you have never taken an edible, 2.5 mg is the smarter first night, even if it feels almost silly. You can always add. You cannot subtract.
Sleep Gummies vs Tinctures for Insomnia: Which Wins?
I have watched plenty of people ignore that advice, take a 25 mg gummy labeled "sleep," and spend the night staring at the ceiling with a racing heart. The packaging told them nothing useful. The dose did.
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Why your number is not someone else's number
- Tolerance. Daily users often need two to four times what a first-timer needs.
- Liver enzymes. Edibles convert THC to 11-hydroxy-THC in the liver. Some people convert fast and hard, others barely at all. Genetics and medications both play a role.
- Food and timing. An edible on an empty stomach hits differently than one eaten after a fatty meal.
- What else is in it. CBD, CBN, and minor cannabinoids shift the feel, though the evidence for CBN as a sleep aid is thin.
- Body composition. THC is fat-soluble, so it clears at different rates from different bodies.
What the research actually shows
The sleep literature on cannabis is mixed, and dose seems to be the hinge. Lower doses are more often associated with falling asleep faster and reporting better sleep quality. Higher doses tend to show up in studies alongside worse sleep quality, more next-day grogginess, and more anxiety. That pattern is worth taking seriously if your instinct is to keep pushing the number up.
How to find your dose
- Pick a night when you have nothing important the next morning.
- Start at 2.5 mg, taken 90 minutes before bed.
- Do not re-dose that night. Edibles can take 30 minutes to 2 hours to show up, and the peak can arrive at hour three.
- Note how you slept and how you felt at 8 a.m.
- If nothing happened, add 2.5 mg the next attempt, not 10.
Timing and format matter as much as milligrams
Standard edibles run 6 to 8 hours, which is longer than most people want for a single night's sleep. That long tail is why a 5 mg gummy can leave you foggy at breakfast. Fast-acting or sublingual formats kick in sooner and fade faster, though they cost more per milligram. Cheaper traditional gummies are fine, you just need to plan the window.
Convenience has reshaped this category in a real way. Single-serve packs, pre-scored 2.5 mg squares, and low-dose tins make it easy to buy without thinking. That is genuinely useful for someone who wants a small, repeatable dose. It also means a lot of shoppers grab a product because the label says "sleep" rather than because they checked the milligram count. Convenience is a great delivery system and a terrible dosing strategy.
Read the package, not the front panel
Check milligrams per piece versus per package. A tin with 20 pieces at 10 mg each holds 200 mg total. Also check whether the label says hemp-derived or state-licensed cannabis, since testing and accuracy standards differ.
When to be careful
- Do not combine with alcohol, benzodiazepines, opioids, or sleep aids without asking a clinician. Sedation stacks.
- Do not drive after an edible, even if you feel fine.
- Skip it if you are pregnant, breastfeeding, or under 21.
- Repeated vomiting or abdominal pain after long-term heavy use needs medical attention, not a higher dose.
Start at 2.5 mg. Wait two hours before you decide anything. Give it a week of consistent nights before you judge whether it works for your sleep at all.