Caffeine & Sleep
Supplement

Caffeine in Vivarin

200mg
per serving
≈ 2 coffees≈ 3 Red Bulls50% of FDA daily max

Is that a lot?

Vivarin is 50% of the FDA’s recommended daily maximum, in a single serving.

Green tea
28 mg
Espresso
63 mg
Red Bull
80 mg
Coffee
95 mg
Vivarin
200 mg
FDA daily max · 400mg
Before bed

When can I drink Vivarin and still sleep?

Your Vivarin cutoff
You drink it at
Bedtime
Vivarin · 200 mg · assuming an average ~5 h half-life
At bedtime
66 mg
may delay sleep
Latest safe Vivarin: 1:00 PM

How much caffeine is in Vivarin?

Vivarin packs 200 mg of caffeine into a single tablet, equal to roughly two cups of coffee in a quick dose. It's a classic alertness aid for fighting fatigue.

ServingCaffeineSugar
serving200 mg0 g

Per tablet.

Will Vivarin affect your sleep?

From 200 mg, Vivarin needs around ten hours to fall under 50 mg, so an afternoon tablet can still be active at bedtime. Its concentrated dose makes late use a likely sleep disruptor.

Heads up
At 200 mg, a second Vivarin in a day pushes you toward the FDA’s 400 mg ceiling — and that’s before any coffee or tea. Log everything in the calculator to see your real daily total.

Source: Manufacturer label

Related drinks

Vivarin & sleep — FAQ

It can, a 200 mg Vivarin tablet takes about ten hours to clear, so one taken in the afternoon may still be above the 50 mg threshold when you try to sleep.

Vivarin has 200 mg per serving — about 50% of the FDA’s 400 mg daily maximum for healthy adults. That’s roughly 2 cups of coffee.

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

Track your caffeine. Sleep better.

The app does this live all day — one-tap logging, widgets, and a 30-minute pre-cutoff reminder. Free, no ads.

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