Caffeine & Sleep
Soda

Caffeine in Dr Pepper

41mg
per 12 oz
≈ 1 Red Bull10% of FDA daily max

Is that a lot?

Dr Pepper is 10% of the FDA’s recommended daily maximum, in a single 12 oz.

Green tea
28 mg
Dr Pepper
41 mg
Espresso
63 mg
Red Bull
80 mg
Coffee
95 mg
FDA daily max · 400mg
Before bed

When can I drink Dr Pepper and still sleep?

Your Dr Pepper cutoff
You drink it at
Bedtime
Dr Pepper · 41 mg · assuming an average ~5 h half-life
At bedtime
14 mg
close to optimal
Latest safe Dr Pepper: 11:00 PM

How much caffeine is in Dr Pepper?

Dr Pepper carries about 41 mg of caffeine in a 12 oz can, landing between Pepsi and Mountain Dew on the soda scale. Its famous 23-flavor blend comes with around 40 grams of sugar to match.

ServingCaffeineSugar
12 oz41 mg40 g

Will Dr Pepper affect your sleep?

At 41 mg, Dr Pepper begins below the 50 mg sleep-threshold and clears within a couple of hours. The caffeine rarely troubles sleep, though a late, sugary can can still keep you restless.

Source: Manufacturer label

Related drinks

Dr Pepper & sleep — FAQ

With about 41 mg, Dr Pepper stays under the 50 mg threshold, so it's unlikely to keep you up, but its sugar load near bedtime can work against an easy wind-down.

Dr Pepper has 41 mg per 12 oz — about 10% of the FDA’s 400 mg daily maximum for healthy adults.

It depends on your bedtime and how fast you clear caffeine. Use the calculator above to see when Dr Pepper drops below the ~50 mg “ok to sleep” threshold for your bedtime.

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