Safe sleep environment for your baby

Oct 21, 2026

Best baby mattress, best baby sleeping bag and the right sleep setup

The baby is freshly changed, the sleeping bag is on and the lights are dimmed. Everything is ready for the night. But as soon as your baby is in bed, they become restless again.

Many parents know this situation. And questions quickly arise: Is my baby too warm? Is the baby mattress right? Do they need more rest or perhaps a familiar bedtime routine?

A safe sleep environment does not start with as many products as possible, but with the right basics. A firm baby mattress, a well-fitting baby sleeping bag and a safely furnished baby cot form the basis. Recurring routines can additionally help to calm down.

What makes a safe sleep environment for babies?

Babies sleep differently than adults. Especially in the first months of life, short sleep phases, hunger and the need for closeness alternate frequently. Waking up at night is also normal.

Back to sleep: Always lay your baby on their back to sleep.
Own sleep area: In the first six months, your baby sleeps most safely in their own baby cot in the parents' bedroom.
Firm, flat mattress: The sleeping surface must not be soft or sink in deeply.
Suitable baby sleeping bag: It replaces a loose blanket.
Empty baby cot: Pillows, stuffed animals, crib bumpers, bed rails and loose blankets do not belong inside.
Pleasant temperature: Avoid overheating
Smoke-free environment: Your baby should sleep in a smoke-free environment.

Best baby mattress: What should you look for when buying?

It is not the price or the thickness of the mattress that is decisive, but its safety-relevant properties.

The 5 most important criteria

Firm sleeping surface: Babies need a sufficiently firm, flat and shape-stable mattress. The baby's head should not sink in too deeply to avoid CO2 rebreathing.
Perfect fit: The mattress must fit the baby cot exactly. Common sizes are 60 × 120 cm and 70 × 140 cm. The mattress should be no more than 3 cm smaller than the inner dimensions of the baby cot in length and width.
Good ventilation: A breathable design can support the sleep environment. It never replaces sleeping on the back. Therefore, always lay your baby on their back.
Washable cover: A removable, washable cover makes hygienic care of the mattress easier. Especially important in the first months.
Tested safety: Look for verifiable tests and relevant requirements, for example EN 16890. These mattresses are produced according to the highest safety standards.

Which baby mattress is recommended?

One example is the Brise baby mattress by Träumeland. It combines a ventilated mattress design with a washable cover and safety bumper edges and has already been awarded.

Important: The best baby mattress is not automatically the most expensive. A firm sleeping surface, fit and proven safety (DIN standard compliant) are decisive.

Best baby sleeping bag: Why fit is crucial

For infants, a well-fitting sleeping bag is the recommended alternative to loose bedding. It reduces the risk of a blanket slipping over the face.

What you should look for

Perfect fit: The head must not slip into the sleeping bag and the child should not get tangled in the sleeping bag.
Maximum freedom of movement: Legs and hips need space.
Suitable TOG value: The warmth rating must match the room temperature. The optimal room temperature is around 16 to 18°C.
Easy-care materials and safe construction: Fasteners and seams should be suitable for everyday use and safe.

Which TOG value is suitable?

Room temperature	Orientation
Over 24 °C	approx. 0.5 TOG
20 to 24 °C	approx. 1.5 TOG
16 to 20 °C	approx. 2.5 TOG or 3.5 TOG

These values are for orientation only. Pay attention to the manufacturer's temperature chart and the clothing under the sleeping bag.

The LIEBMICH baby sleeping bags by Träumeland are an option for parents who pay attention to fit, ventilation and ease of care. The properties differ depending on the model.

Tip: Check your baby's temperature at the neck or chest. Sweating can be an indication of overheating. Cool hands alone say little.

The perfect baby cot setup: What really belongs inside?

A nicely furnished baby room is not automatically a safe sleeping place. Especially with newborns, less is more.

What belongs in the baby cot

A firm, flat and well-fitting baby mattress
A tightly fitted fitted sheet
Your baby in a suitable sleeping bag

This should not be in the baby cot

Pillows and cushions
Loose blankets
Stuffed animals and toys

Remember: The safe baby cot is deliberately furnished simply. Closeness and security are not created by additional items in the bed.

Bedtime routines for babies: Why familiar routines can help

A bedtime routine does not have to be elaborate or particularly long. The important thing is that it suits you.

Create calm: Reduce bright light and exciting activities.
Fresh diaper change: Ensure a dry, comfortable diaper area.
Put on the sleeping bag: Adjust it to the room temperature.
Offer closeness: Cuddling, a calm voice or a lullaby can soothe.
Put in the baby cot: Lay your baby on their back.

Not every baby falls asleep immediately after this. Especially newborns often need additional closeness. You can find more tips on bedtime routines here.

White noise and sleep music: What really helps?

Some babies react sensitively to changing ambient noises. Constant sounds can make disturbing noises less noticeable. However, there is no general evidence for better or longer sleep. You can find more about white noise and its effect on babies here.

How to use white noise as safely as possible

Choose a low volume.
Place the sound source at a sufficient distance from the baby cot.
Do not place speakers or sound toys in the cot.
Observe how your baby reacts.
Stop using it if it makes your baby more restless.

Lenabo: Gentle sounds as part of the bedtime routine

Lenabies combine stuffed animals with audio content. With a suitable smart speaker, depending on the range, constant sounds and sleep melodies can be played, among other things. During infant sleep, the stuffed animal must remain outside the baby cot. Discover the Lenabo Starter Kit now.

Why does my baby still sleep restlessly?

A safe sleep environment does not mean that your baby automatically sleeps through the night. Frequent waking up is normal, especially at the beginning.

Hunger: Newborns need regular food at night too.
Need for closeness: Physical contact and familiar voices can soothe.
Temperature: Clothing that is too warm or too cool can be disruptive.
Overstimulation: An exciting day can make falling asleep difficult.
Development: The sleep rhythm changes with increasing age.

In case of persistent sleep problems, noticeable breathing, or signs of illness, you should seek medical advice.

Checklist: How to set up the sleep area safely

Baby cot in the parents' bedroom during the first six months
Firm, flat and well-fitting mattress
Tightly fitted fitted sheet
Suitable sleeping bag with appropriate TOG value
Clothing according to the room temperature

Conclusion: Safe baby sleep needs less than you think

A firm baby mattress, a suitable baby sleeping bag, an empty baby cot and sleeping on the back form the basis for a safe sleep environment. Familiar routines and closeness can complement everyday life. Every baby has their own sleep rhythm.