Does iced coffee keep you awake?

In this short article we will answer the question: “Does iced coffee keep you awake?”. In addition, we will discuss some tips on how to have a good night’s sleep and still continue to drink coffee daily. In addition, we will discuss the harm of a bad night’s sleep.

Does iced coffee keep you awake?

Yes, iced coffee keeps you awake. The caffeine present in coffee disrupts the quality and quantity of sleep. With an effect of around 6 hours, your body will still be processing a cup of coffee you had in the morning, until late afternoon, meaning when you increase your caffeine dose or consume it later, your sleep is negatively affected.

Caffeine has the ability to bind to the same receptors as adenosine, inhibiting their activity and accelerating neural activity.

It is as if caffeine “tricks” the brain: no matter how much adenosine we have accumulated, caffeine blocks the receptors, causing the sensation of sleep to momentarily stop.

How does caffeine affect our sleep?

Caffeine affects our sleep due to caffeine being an antagonist of adenosine receptors, a substance essential for sleep to settle in the brain. the greater the amount of caffeine you ingest, the greater your body’s resistance to this substance. In addition, your liver will start producing more proteins and substances that break down protein, causing the number of adenosine receptors in the brain to multiply. That said, you will need more caffeine to stay awake.

While caffeine intake can have an immediate effect on concentration and energy, you will feel more tired after the effects of caffeine wear off in your body, this is called the caffeine rebound effect. Therefore, you will need more and more caffeine to stay awake and this will have long-term impacts on your health in the future.

For this, the best solution is to reduce the consumption of caffeine or drink decaffeinated coffee. Also, if you are very tired and need caffeine constantly, these are your body’s signals that you need to rest and get a good night’s sleep.

What are the harms of a bad night’s sleep?

The harms of a bad night’s sleep is due to sleeping poorly increases the risk of numerous pathologies, including cardiovascular diseases. Caffeine is a stimulant, naturally present in more than 60 plants, such as the coffee bean, tea leaf, kola nut and cocoa pod.

When ingesting caffeine in coffee, tea, soft drinks or energy drinks, we increase our alertness because caffeine temporarily blocks the action of substances that induce sleep and increases the production of adrenaline.

In some people, the same source assures, the effect can manifest itself in just 15 minutes after ingestion. In addition to altering sleep, it can cause headaches, dizziness, anxiety, irritability and increased heart rate.

If you experience any of these symptoms – or start feeling addicted – you should exclude caffeine from your diet.

Is caffeine a good substitute for a bad night’s sleep?

No, caffeine is not a good substitute for a bad night’s sleep. Caffeine should not be used to combat sleep caused by a bad night’s sleep. You start a vicious cycle of caffeine addiction and sleep deterioration by consuming the substance to excess. You feel unwell and fatigued from having slept poorly and drink coffee to wake up. 

But this coffee can make the next night even worse if taken in excess. You’ll start to feel like you need more caffeine to function, which will make your sleep worse, have side effects, and you’ll likely develop a caffeine tolerance.

Unfortunately, the answer to this cycle doesn’t lie in another cup of coffee. It’s about prioritizing your sleep, and then slowly and carefully re-establishing the habit.

Why does coffee help me sleep?

Caffeine in the short term removes the tired effects of fatigue from your body but in the long term it has the rebound effect on the body, making you more tired, which is why caffeine intake helps some people sleep better. People develop tolerance to caffeine and increasingly need this substance to feel the desired effects, with this the rebound effects at the end of the day are intensified.


In this short article we answered the question: “Does iced coffee keep you awake?”. In addition, we discussed some tips on how to have a good night’s sleep and still continue to drink coffee daily. In addition, we discussed the harm of a bad night’s sleep.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.