Is it a problem that I often wake up during the night?
Regularly waking during the night affects your mood, concentration and, over time, your health. If it is a structural problem, it is worth doing something about it, starting with a proven behavioural approach to sleep.
Waking up during the night is the strongest predictor of sleep dissatisfaction, more so than difficulty falling asleep or sleeping too few hours. This is striking: many people focus on how long they sleep, but how uninterrupted their sleep is turns out to matter more for how they actually experience their sleep.
The daytime consequences are real. An analysis of 154 experimental studies involving a total of 5,717 participants shows that people who wake up regularly during the night have fewer positive feelings during the day and are more prone to anxiety symptoms. Because this was studied under controlled conditions, there is reason to believe that sleep fragmentation is the cause here, not merely a side effect. Sustained sleep deprivation also impairs memory, concentration and decision-making.
Over the longer term, disrupted sleep has been linked to a higher risk of cardiovascular disease, a compromised immune system and neurodegenerative conditions. People who structurally sleep poorly also tend to eat less healthily: more high-fat and high-carbohydrate snacks, which makes losing weight more difficult. Whether those health risks are directly caused by the sleep disruption or also by underlying factors has not yet been fully established.
Chronic insomnia, including regularly waking during the night, affects up to 10 percent of the adult population and is more common in women. It is a recognised independent risk factor for mental health problems. The best-supported treatment is a form of behavioural therapy focused on sleep, which is also available digitally. If that proves insufficient, newer sleep medications that suppress the wake-promoting system rather than artificially inducing sleep may help. Daridorexant has been studied for up to twelve months and showed no withdrawal symptoms. Which approach suits you best is something to discuss with your general practitioner.
The answer is based on several large studies, including an analysis of 154 experimental studies on sleep fragmentation and its emotional consequences. For the long-term risks (cardiovascular disease, immune system), these are associations from large population studies, where the researchers themselves note that causal relationships and methodological limitations have not yet been fully clarified. The evidence for behavioural therapy as a treatment is strong; for medication it is solid but more limited in duration.
Why do I wake up tired even after sleeping for a long time?
Waking up tired despite sleeping for a long time is a normal phenomenon called sleep inertia, and the time of waking and evening screen use play a clear role in it. Limit screens before bedtime and keep naps short (around 30 minutes) to avoid the worst grogginess.
How bad is screen light in the evening for my sleep?
Screen light in the evening disrupts your sleep hormone and keeps you less sleepy at the wrong moment. Dim your screens after dinner, or wear amber-tinted glasses if you still need to work.
Why am I wide awake in the evening when I feel tired during the day?
Your biological clock and your chronotype determine when your body wants to be awake. When that clock does not align with your daily schedule, you feel tired during the day and wide awake in the evening. Light exposure at the right time and a consistent sleep schedule are the most well-supported ways to correct this.
Why do I dream so much, and is that good or bad?
Simply dreaming a lot is normal and need not be a cause for concern. However, persistent nightmares or dreams that you physically act out during sleep are signals that should be taken seriously and discussed with your GP.
Do I sleep worse if I am often alone or feel lonely?
Yes, loneliness is clearly associated with poorer sleep: you have more difficulty falling asleep, wake up more often during the night, and feel more tired during the day. Working on social connection is therefore also a concrete step toward better nights.
How much sleep do I actually need?
There is no universal sleep recommendation in hours, but losing as little as one and a half hours of sleep consistently produces measurable effects on thinking, mood, and weight. How you feel during the day is your best guide.