Caffeine & Sleep
Coffee

Caffeine in Instant Coffee

62mg
per 8 oz
≈ 1 coffee≈ 1 Red Bull16% of FDA daily max

Is that a lot?

Instant Coffee is 16% of the FDA’s recommended daily maximum, in a single 8 oz.

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

When can I drink Instant Coffee and still sleep?

Your Instant Coffee cutoff
You drink it at
Bedtime
Instant Coffee · 62 mg · assuming an average ~5 h half-life
At bedtime
20 mg
close to optimal
Latest safe Instant Coffee: 9:27 PM

How much caffeine is in Instant Coffee?

A rounded teaspoon of instant granules makes an 8 oz cup with about 62 mg of caffeine, a touch lighter than fresh-brewed drip. It's the quick, reliable cup, and the dose lands right in everyday coffee territory.

ServingCaffeineSugar
8 oz62 mg0 g

Per rounded teaspoon of granules.

Will Instant Coffee affect your sleep?

At 62 mg, a cup of instant slips under 50 mg within an hour or two and is largely cleared in five. A lunchtime cup poses little risk to sleep; an evening one can still register for sensitive drinkers.

Source: USDA FoodData Central

Related drinks

Instant Coffee & sleep — FAQ

A single cup at 62 mg is on the lighter side, so an afternoon instant is usually clear by bedtime unless you're especially caffeine-sensitive.

Instant Coffee has 62 mg per 8 oz — about 16% of the FDA’s 400 mg daily maximum for healthy adults. That’s roughly 1 cup of coffee.

It depends on your bedtime and how fast you clear caffeine. Use the calculator above to see when Instant Coffee 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.

Get the App — it’s free