Why you're tired even though you're getting enough sleep – and how CBD promotes deep sleep

You probably know the feeling: Your alarm rings, you’ve had your 8 hours of sleep – and yet you feel completely drained. No energy, no drive, just this heavy, leaden feeling throughout your body. About 30 percent of all people in Germany complain of constant tiredness despite sufficient sleep – a problem that is often underestimated (1).

The causes of this chronic exhaustion are varied: everyday stress, too much screen time before bed, irregular sleep patterns. But the real problem often lies deeper – more precisely: in the lack of deep sleep. Because sleep duration alone says little about the actual quality of sleep. What happens in your body at night is crucial.

A particularly promising candidate for better sleep: Cannabidiol (CBD). The natural active ingredient from the hemp plant could support your deep sleep phase and help you wake up feeling more refreshed. We'll show you why your body isn't regenerating properly – and how CBD may improve your sleep architecture.

Many people believe that 7 to 9 hours of sleep automatically ensure recovery. While sleep duration is important – it's only half the truth. Just as crucial is how you sleep. Because your body goes through several sleep phases each night, all of which have their own functions.

A complete sleep cycle lasts about 90 minutes and repeats several times per night. Different phases alternate:

• Light Sleep (Non-REM 1 and 2): In this phase, your body slowly winds down. Your heart rate slows, muscles relax. You are still relatively easy to wake up.
• Deep Sleep (Non-REM 3): This is where the real magic happens. Your body releases growth hormones, repairs cells, strengthens your immune system, and stores memories. This phase is crucial for your physical regeneration and health.
• REM Sleep (Dream Phase): In the REM phase, your mind processes the day's events. Your brain is almost as active as when you're awake – but your muscles are completely relaxed. This phase is important for your psychological recovery and performance.

The problem: If your body spends too little time in deep sleep or constantly jumps between phases, true recovery is lacking. You may sleep for a long time – but superficially. And that's exactly what can lead to constant tiredness, no matter how many hours you spend in bed.

Sleep deprivation promotes fatigue and is unhealthy

The most common causes of constant tiredness despite sleep:

You might be sleeping 8 hours – but your body rarely reaches the important deep sleep phases. Frequent awakenings during the night, even if you don't remember them the next morning, severely disrupt your sleep rhythm. The result: your body cannot regenerate properly.

Stress is one of the biggest sleep killers. If your mind is still racing in the evening, your sympathetic nervous system remains active – the system responsible for fight-or-flight responses. Your body continues to release cortisol, the stress hormone. And this prevents you from sliding into deep, restorative sleep phases. You're in bed, but your mind can't find peace.

Alcohol before bed might make you feel tired – but it disrupts your sleep cycles and reduces REM sleep. Equally problematic: blue light from smartphones, tablets, or laptops. It inhibits the production of melatonin, your natural sleep hormone. And irregular sleep habits – sometimes going to bed at 10 PM, sometimes at midnight – completely throw off your sleep-wake rhythm.

Your body needs certain nutrients to sleep restfully. A deficiency in magnesium, vitamin D, vitamin B12, or B vitamins can lead to sleep problems and chronic fatigue. Your hormone balance also plays an important role: if serotonin production (a precursor to melatonin) is disrupted, sleep quality suffers.

Good to know: Constant tiredness despite sufficient sleep can also have more serious causes – such as sleep apnea (nocturnal breathing pauses), cardiovascular diseases, thyroid problems, or chronic fatigue syndrome. If you remain tired for weeks despite all tips and measures, you should definitely consult a doctor. A blood test, for example, can reveal a vitamin deficiency or an illness.

Cannabidiol – or CBD for short – is one of over 100 active compounds from the hemp plant. Unlike the more well-known THC, CBD is not intoxicating, is not addictive, and is available as a dietary supplement in Germany.

But what makes CBD so interesting for better sleep?

The answer lies in your Endocannabinoid System (ECS). This endogenous system regulates central functions such as your sleep-wake rhythm, your stress response, your pain perception, and your ability to relax. It consists of receptors (CB1 and CB2) distributed throughout the body – including your brain.

CBD interacts with these receptors and also with serotonin receptors. This can help restore your internal balance – and that is precisely the basis for restful sleep.

It's important to understand: CBD is not a sedative. So it doesn't make you heavily tired like traditional sleeping pills. Instead, it has a regulating effect. It helps your body create the conditions for good sleep: reducing stress, slowing down racing thoughts, releasing inner tension.

And that's exactly what can make the difference between superficial dozing and true deep sleep.

CBD Sleep Oil from Hanfgeflüster - for your nightly well-being

One of the main causes of poor sleep is chronic stress – and this manifests in your body primarily through elevated cortisol levels. This stress hormone keeps you awake and active when you should actually be winding down.

This is where CBD could come in: initial studies suggest that CBD can influence cortisol levels and reduce stress (1). By interacting with your endocannabinoid system, it could help your body switch from stress mode to relaxation mode. Your parasympathetic nervous system – the part of your nervous system responsible for rest and regeneration – might be strengthened.

Practically, this could mean: you unwind more easily in the evening, racing thoughts slow down, and the path to sleep becomes shorter.

CBD appears to bind to so-called 5-HT1A receptors – a specific type of serotonin receptor. Serotonin is not only the "happiness hormone" but also a precursor to melatonin, your natural sleep hormone. By potentially activating these receptors, CBD could promote a calming, anxiolytic effect (2).

The result: Your body may be better able to prepare for sleep. You feel more relaxed, less tense – and your natural fatigue can unfold.

And now it gets really interesting: several studies – including animal studies – suggest that CBD may influence the time spent in deep sleep (3). This is a promising approach – because, as we have seen, physical regeneration primarily takes place during this phase.

One study with EEG measurements showed that people who took CBD showed signs of improved sleep architecture: less nocturnal awakening, potentially more deep sleep, and an overall more stable sleep structure. Exactly what your body needs to truly recover.

Practically, this could mean: you don't just wake up feeling more rested – you might actually be more refreshed. Your immune system had time to work, your muscles could regenerate, your brain could process and store information.

At very high CBD doses (over 100 mg), there are indications that the REM phase could be slightly affected. At low to medium doses – as typically recommended for better sleep (10-50 mg) – this effect has not been observed in previous studies. On the contrary: many users report more vivid dreams and an overall improved sleep continuity (4).

Many people resort to medication for sleep problems. But how does CBD compare?

CBD offers gentle support – especially for people who do not want to take addictive medications. Important: If you are already taking prescription sleeping pills, never stop them abruptly. Discuss with your doctor how you could integrate or switch to CBD.

Research into CBD and sleep is developing dynamically, but in many areas it is still in its infancy. There are promising indications – but also research gaps. Let's look at three important studies:

A clinical study published in 2019 examined 72 adults with anxiety disorders and sleep problems (1). After just one month of CBD intake, 66 percent of participants reported improved sleep quality. Particularly interesting: anxiety levels decreased in 79 percent – and less anxiety can often mean better sleep.

A review from 2015 showed that CBD may have anxiolytic properties by interacting with serotonin receptors (2). Since anxiety and rumination often prevent sleep, CBD can indirectly lead to better nights – not as a direct sleep aid, but as a potential stress and anxiety reducer.

A animal study on rats from 2013 examined the effect of CBD on the sleep-wake rhythm (3). The results: CBD appeared to prolong overall sleep duration and increase sleep stability. Important to note: animal experiments cannot be directly translated to humans – but they provide important clues to possible mechanisms that need to be investigated in further human studies.

Large, randomized long-term human studies with standardized dosages are still lacking. Most studies use different CBD doses, dosage forms, and study durations – which makes comparisons difficult. But: the results so far are encouraging enough to consider CBD a promising candidate for better sleep.

Dosage: Start low and increase gradually. Our rule of thumb for starting CBD intake is: "start low, go slow!"

Beginner dosage: Start with 10-20 mg of CBD about 30 to 60 minutes (min) before bedtime. Observe how your body reacts.

Adjustment: You can slowly increase the dose – for example, in 5 mg increments every few days – until you feel the desired effect. Most people find their optimal dose between 20 and 50 mg.

Important: Every body reacts differently. Factors such as your body weight, metabolism, the severity of your sleep problems, and even your diet play a role. Some people only need 10 mg, others need 80 mg. Give yourself time to find your individual dose.

CBD oil: The most popular option. You drop the CBD oil under your tongue and let it work for about 60 seconds before swallowing it. Absorption through the oral mucous membrane is fast (15-30 min) and bioavailability is high.

CBD capsules: Practical for on the go and tasteless. The effect is slightly delayed (30-60 min) but lasts longer – ideal if you also have problems staying asleep.

CBD tea: A nice evening ritual, but bioavailability is lower than with oil or capsules. More suitable as a supplement.

Recommendation for better sleep: CBD oil is most effective.

Take your CBD about 30 to 60 minutes before bedtime – this gives it time to work before you go to bed. Combine the intake with your evening routine: a good book, light relaxation exercises, maybe a short meditation. Avoid screens during this time.

In rare cases of insomnia, a second mini-dose in the middle of the night can be useful – but this is more the exception. Usually, one dose in the evening is sufficient.

CBD products are available in Germany as food supplements, provided they have a legally compliant low THC content. The exact limits can vary depending on the product category – therefore, pay attention to the manufacturer's analysis certificate (COA) and ensure that the product complies with current German and EU-wide regulations. CBD is not subject to prescription.

CBD may help you sleep better – but it does not replace healthy sleep habits. Here are the most important factors that influence your sleep quality:

• Fixed bedtimes: Go to bed at the same time every day and wake up at the same time – even on weekends. Your body loves routine.
• Optimal sleep environment: Your bedroom should be dark, cool (16-18°C), and quiet. Invest in a good mattress and comfortable bedding.
• Screen-free time: Turn off your smartphone, tablet, and laptop at least an hour before bedtime. Blue light inhibits melatonin production.
• Light evening meal: Avoid heavy, fatty meals shortly before bedtime. Your body should be able to focus on regeneration – not digestion.

Create a ritual that signals to your body: "It's time to wind down." This can be:

• A warm bath with added magnesium

• 10 minutes of reading (but nothing exciting!)

• Gentle yoga exercises or progressive muscle relaxation

• Breathing exercises (e.g., 4-7-8 breathing)

• CBD as part of this routine

Magnesium: Supports muscle relaxation and calms the nervous system. Many people are deficient – ensure adequate intake through diet or supplements.

Vitamin D: Low vitamin D levels are associated with sleep disturbances and fatigue. Especially in winter, supplementation can be useful.

B vitamins: Important for energy and nerve health. A vitamin deficiency can lead to exhaustion and sleep problems.

L-Theanine: This amino acid from green tea has a calming effect without causing drowsiness.

CBD + Melatonin – useful?

The combination can be useful in the short term – for example, with jet lag, shift work, or if you want to reset your sleep rhythm. Melatonin shortens the time it takes to fall asleep, while CBD could support sleep quality. Together, they can work well.

However, do not use this combination permanently. Otherwise, your body might reduce its own melatonin production. After 2-3 weeks, you should take a break.

Regular exercise can significantly improve your sleep. It reduces stress, causes physical fatigue, and regulates your sleep-wake rhythm. But: Avoid intense workouts shortly before bedtime. Exercise raises your body temperature and activates your body – which can make it harder to fall asleep. Plan exercise for the morning or early afternoon instead.

CBD may potentially support many sleep problems – but not all of them. You should seek medical help in the following cases:

Suspicion of sleep apnea: If you snore loudly at night, have breathing pauses, or are extremely tired during the day despite long sleep, sleep apnea could be the cause. This is not a trivial matter – left untreated, it increases the risk of cardiovascular diseases.

Chronic fatigue without an identifiable cause: If you are tired for weeks or months, even though you are doing everything right, an illness could be behind it – such as an underactive thyroid, a vitamin deficiency, iron deficiency (detectable in the blood), or chronic fatigue syndrome.

Psychological causes: Depression, anxiety disorders, or persistent stress can massively affect your sleep. Professional support is important here.

Unclear symptoms: If you have other symptoms besides fatigue, such as pain, weight loss, or fever, get it checked out.

CBD shows promising potential when it comes to supporting your sleep quality. Especially with stress-related sleep problems, possibly lacking deep sleep, and difficulties falling asleep, CBD could be supportive. Initial studies suggest that it can influence cortisol, promote relaxation, and improve sleep architecture – without causing dependence or leaving you feeling groggy the next morning.

The key lies in the combination: CBD may help, but it works best in conjunction with healthy sleep hygiene, regular sleep times, an optimal sleep environment, and conscious stress management in everyday life.

Medical Disclaimer