Quick answer
There is no single tincture dose that works for sleep. Product guidance and clinician advice generally point to a starting range of 1 to 2.5 mg THC and 10 to 25 mg CBD, taken 30 to 60 minutes before bed. Hold that dose for three nights before you change it. Tincture taken under the tongue usually starts working in 15 to 45 minutes and lasts four to six hours.
Before you start
- A tincture whose label lists THC and CBD in milligrams per milliliter (mg/mL), not just percentages.
- A dropper marked in 0.25 mL or 0.5 mL increments.
- A dosing log, on paper or in your phone.
- A clinician who knows you use cannabis, especially if you take sedatives, antidepressants, sleep aids, blood thinners, or blood pressure medication.
Do the label math first
A 30 mL bottle that contains 300 mg of THC holds 10 mg of THC per mL. A full 1 mL dropper is therefore a 10 mg dose, and 0.25 mL is 2.5 mg. Run the same math for CBD on the same label. Write your target dose in milligrams on the log before the first night so you are not calculating while tired.
Step-by-step: finding your sleep dose
- Track your sleep for two nights with no cannabis. Note lights-out time, minutes to fall asleep, and how many times you woke.
- Shake the bottle for about 10 seconds so the cannabinoids are evenly mixed.
- Draw 0.25 mL into the dropper. That is the smallest practical starting unit for most tinctures.
- Place the liquid under your tongue and hold it there for 60 to 90 seconds, then swallow.
- Take the dose 30 to 60 minutes before lights out. Do not take it after you are already in bed.
- Record the dose, the time, minutes to fall asleep, night wakings, and how you feel at wake-up.
- Repeat the same dose for three nights. Single nights tell you very little because sleep varies on its own.
- If sleep has not improved and you feel no grogginess the next morning, add 0.25 mL to the dose.
- Hold the new dose for three more nights, then repeat the check.
- Stop increasing as soon as you get the result you want, and stay at that dose.
Starting ranges people commonly use
- CBD-dominant tincture: 10 to 25 mg CBD with THC under 2.5 mg.
- Balanced 1:1 tincture: roughly 2.5 mg THC with 2.5 mg CBD.
- THC-dominant tincture: 1 to 2.5 mg THC.
Treat these as starting points, not targets. Body weight, tolerance, liver enzymes, and how you absorb the liquid under your tongue all shift the number. Some people sleep well on 1 mg THC. Others need 10 mg or more.
Timing matters as much as dose
Held under the tongue
Sublingual absorption is faster and more predictable. Expect effects to begin within 15 to 45 minutes. This is the method to use when you want a dose you can adjust night by night.
medical cannabis tincture dosage for sleep
Swallowed
If you swallow the tincture right away, it goes through the digestive system and behaves more like an edible. Onset stretches to 60 to 120 minutes and effects can last longer into the morning. If you switch methods, drop back to your starting dose.
What to log each night
- Dose in mg of THC and CBD, plus the volume in mL
- Time of dose and time of lights out
- Minutes to fall asleep
- Number of night wakings
- Morning grogginess on a 1 to 5 scale
- Any dry mouth, racing heart, anxiety, or next-day fogginess
When to pause and reassess
Stop increasing and call your clinician if you get anxiety, a racing heart, or paranoia, or if you feel hungover past mid-morning. Do not stack a tincture with alcohol, benzodiazepines, opioids, or sleep medications, because the combined sedation can be strong and unpredictable. If two weeks of steady dosing does not help your sleep, a tincture is probably not the right tool for you. Insomnia has other treatments, including cognitive behavioral therapy for insomnia, that work without any drug interaction risk.