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How do sparkling energy drinks affect your sleep?

Quick answer

Sparkling energy drinks can make it harder to fall asleep and stay asleep because of their caffeine. The FDA cites about 400 mg of caffeine a day as an amount not generally linked to harm for most adults, and energy drinks commonly contain 54 to 328 mg per 16 fl oz. Have them early in the day, or skip them.

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In this article
  1. Do energy drinks affect sleep?
  2. How much caffeine is in them?
  3. How long does the effect last?
  4. How to protect your sleep
  5. Who should be careful

Do energy drinks affect sleep?

Yes. Caffeine is a stimulant, and the FDA lists insomnia and sleep disruption among the signs of too much caffeine.

How much caffeine is in them?

The FDA says energy drinks commonly contain 54 to 328 mg of caffeine per 16 fluid ounces. The FDA cites about 400 mg a day as an amount not generally linked to negative effects in most healthy adults, but sensitivity varies widely. Some products add sugar, guarana or other stimulants, so check the label.

How long does the effect last?

People clear caffeine at different speeds, and its effects can last hours. A US Army Medicine article advised stopping all caffeine at least 6 hours before scheduled sleep. If you are sensitive, stop earlier.

How to protect your sleep

  • Drink it in the morning or early afternoon, not in the evening.
  • Count all caffeine: coffee, tea, soda, pre-workout powders, even decaf in small amounts (about 2 to 15 mg per 8 fl oz cup).
  • Choose smaller cans and read the mg figure.
  • If you cut back, do it gradually.
  • Keep a regular bedtime.

Who should be careful

  • Children and teens: medical experts advise against energy drinks for them.
  • Anyone pregnant, trying to become pregnant or breastfeeding: talk to your health care provider about limiting caffeine.
  • People with heart conditions or on medication: ask your doctor first.

This is general information, not medical advice. If you have persistent sleep problems, speak to a clinician.

People also ask

How many hours before bed should I stop energy drinks?

A US Army Medicine article advised stopping caffeine at least 6 hours before sleep. More sensitive people may need longer.

How much caffeine is in an energy drink?

The FDA says commonly 54 to 328 mg per 16 fl oz. Always check the can, since products differ.

Are sparkling energy drinks safer for sleep than regular ones?

Fizz makes no difference. What counts is the caffeine and any other stimulants listed on the label.

General information only, not medical advice. If you have a health condition or are pregnant, ask your doctor before changing what you drink.

Sources

  1. FDA: Spilling the Beans: How Much Caffeine Is Too Much?, read 5 Nov 2026
Written by Drinks Type Editorial Team · Published Dec 28, 2024 · Updated Nov 6, 2026
About · How we verify this · Editorial policy · Corrections

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