Child won't fall asleep – 8 reasons and what really helps
It's 8 PM. The evening routine is done, the lights are off – and your child is still awake. Again. Toddler sleep problems are one of the most common concerns for parents in Switzerland. The good news: In most cases, there's a clear underlying cause that can be addressed.
We explain the 8 most common reasons why children can't fall asleep – and what you can specifically do about them.
1. Bedtime doesn't match sleep needs
This is the most common reason – and the most underestimated. Many children are put to bed too early. They simply aren't tired yet. The result: endless tossing and turning, whining, calling for parents.
The solution: Calculate the ideal bedtime backwards from wake-up time. A three-year-old who wakes up at 7 AM and needs 12 hours of sleep should go to bed at 7 PM – not 6 PM. Try shifting bedtime back in 15-minute increments until your child falls asleep within 20 minutes.
2. The bedtime routine is missing or constantly changing
Children need predictable routines. A toddler's brain learns: "When X happens, sleep comes next." If this signal is missing, the nervous system remains active.
An effective routine lasts 15 to 30 minutes and always follows the same sequence: for example, bath, brushing teeth, story, cuddling, lights out. Important: The routine ends in bed – not on the sofa or in the parents' bed.
3. Too much screen time before bed
The blue light from tablets, smartphones, and televisions inhibits the production of melatonin – the hormone that prepares the body for sleep. A toddler's brain is particularly sensitive to this.
Recommendation: Turn off screens at least 60 minutes before bedtime. Replace screen time with quiet activities: drawing, puzzles, reading aloud.
4. The child is overtired – not just not tired enough
Paradoxical but common: Children who stay awake too long release stress hormones like cortisol. These make them wound up, hyperactive, and difficult to calm down – even though they are actually exhausted.
You can recognize your child's sleep window by early signs of tiredness: rubbing eyes, playing less, becoming whiny. If you act at this moment, your child will fall asleep much faster than an hour later.
5. Excitement or stress in the evening
Roughhousing, exciting games, family arguments, a stimulating day at kindergarten – all of these keep the nervous system active. Children cannot simply "switch off."
Consciously plan a calm last hour before bedtime. Dimmed lights, quiet music, soft conversations. Give your child the opportunity to mentally wind down from the day – for example, through a short conversation: "What was nice today? What was difficult?"
6. The sleep environment is not right
Too warm, too loud, too bright – or a bed where the child doesn't feel safe. Children sleep best at 18 degrees Celsius, in a darkened room, and in a quiet environment.
Especially important: the feeling of security in the bed itself. Hard edges, crib bars, or a too large, empty bed can create unconscious tension. A soft, secure sleeping nest – with organically shaped fall protection and soft padding all around – gives toddlers the feeling of security they need to fall asleep.
7. Separation anxiety
Separation anxiety is most common between 18 months and 3 years. Your child now knows that you are leaving – but is not yet sure that you will return. Falling asleep feels like saying goodbye.
Helpful strategies: Say goodbye clearly and consistently – no repeatedly coming back. A "guardian" (a stuffed animal that "watches over") can help. And: Keep your promises. "I'll come back and check in 5 minutes" – and then actually do it.
8. Physical causes
Sometimes there's a physical cause behind sleep problems: teething, growing pains, a stuffy nose, earaches, or skin irritations. Children often can't name these complaints – they show them through restlessness and crying.
If sleep problems suddenly appear and are accompanied by other symptoms, it's worth talking to your pediatrician.
What really helps – the most important measures
| Problem | Solution |
|---|---|
| Bedtime too early | Shift time back in 15-minute increments |
| No routine | Introduce a fixed 20-minute evening routine |
| Screen before sleep | Turn off 60 minutes beforehand |
| Overtiredness | Recognize early signs of tiredness and act immediately |
| Excitement in the evening | Consciously make the last hour calm |
| Poor sleep environment | 18 degrees, darkness, secure bed |
| Separation anxiety | Clear goodbyes, guardian ritual, keep promises |
| Physical causes | Consult a pediatrician |
Frequent questions about falling asleep
When do sleep problems require treatment?
If your child consistently takes longer than 45 minutes to fall asleep for more than four weeks, and it noticeably affects their daytime functioning, sleep counseling is worthwhile. The University Children's Hospital Zurich offers specialized sleep counseling for families.
Should I let my child cry it out?
The so-called "Ferber method" or "Cry-it-out" is controversial. Current research shows: short, controlled waiting periods with regular comforting (without picking up) are acceptable for most children over 6 months. It is discouraged for children under 6 months.
Does a nightlight help?
Yes – for children with a fear of the dark, a dim, warm white nightlight can be helpful. Blue or white light should be avoided, as it inhibits melatonin production.
How long is it normal for a child to take to fall asleep?
10 to 20 minutes is considered normal. Less than 5 minutes can indicate overtiredness, and regularly over 30 minutes indicates a sleep problem.
The most important things at a glance
Children's sleep problems almost always have a clear cause. The most common are incorrect bedtime, a missing routine, and too much excitement in the evening. With the right adjustments, most children fall asleep significantly better within a few days.
And sometimes a simple change also helps: a cozy, soft bed where your child truly feels safe – from the very first night.
Sources: University Children's Hospital Zurich, Centre for Sleep Medicine; School Medical Service City of Zurich, as of 03/2025; German Society for Sleep Research and Sleep Medicine (DGSM).
