How to make up a baby cot correctly for safe sleep

A beautifully made-up baby crib feels like a loving preparation for your little one's arrival. However, for a safe night's sleep, the rule is: the simpler the crib, the better. Making up a baby crib correctly isn't about layers, pillows, or decorative accessories, but about a firm, flat, and clear sleeping space where your baby can breathe and move comfortably.

With a well-fitting mattress, a taut fitted sheet, and appropriate sleepwear, you create exactly that calm beginning. This way, the nursery remains not only stylish and serene, but above all a place where safety and security are paramount.

Making up a baby crib correctly: the safe foundation

Always start with a baby crib that is sturdy and stable. Check that all components are securely fastened and that the base is set to the correct height for your baby's age and development. For a newborn, the base is usually set higher so you can easily put your child down without having to bend over deeply. As soon as your baby starts pulling themselves up or can sit independently, the lowest setting is required.

Inside the crib should be a firm, flat mattress that fits precisely against the bed frame. There should be no space where a hand, foot, or head could get stuck. A mattress that is too small, feels too soft, or curls at the edges is not suitable. Instead, choose a high-quality baby mattress that retains its shape well and offers sufficient support.

Over the mattress, you can place a well-fitting, waterproof mattress protector. This is practical for small accidents, but choose a version that remains flat and is breathable. Over this goes a clean fitted sheet made of soft cotton or another carefully selected, breathable material. Pull the fitted sheet tight around the corners, without loose folds or raised edges.

What belongs in the baby crib and what doesn't?

The temptation is understandable: a small blanket, a cuddly toy, or a decorative pillow makes a baby crib immediately atmospheric. However, these items have no place in the crib while sleeping. Loose materials can end up over your baby's face or obstruct free breathing.

A safely made-up baby crib therefore only contains the mattress, a suitable mattress protector, and a taut fitted sheet. Your baby should preferably sleep in a well-fitting sleeping bag. This provides warmth without the need for loose bedding. Ensure the neck and arm openings fit well so your child cannot slide down into the sleeping bag.

Do not use a pillow, duvet, bumper, head protector, positioning cushion, loose muslin cloth, toys, or cuddly toys in a baby crib. A baby nest is also intended for supervised rest moments and not as a permanent sleeping place in a crib. Feel free to save those beautiful accessories for a shelf, dresser, or reading corner, where they give the room character without unnecessarily cluttering the sleeping environment.

Choose a sleeping bag that fits the season and room

For many parents, a sleeping bag is the simplest way to keep their baby safely and comfortably warm. It also prevents your child from kicking off the covers. The right choice depends on the temperature in the nursery, the clothing worn under the sleeping bag, and how warm your baby gets naturally.

A room temperature of about 16 to 18 degrees is comfortable for many babies to sleep in. Regularly check the back of your child's neck to assess whether they are too hot or too cold. Hands and feet can feel cooler and are less reliable indicators of how warm your baby actually is. If the neck feels sweaty or clammy, remove a layer of clothing.

When choosing a sleeping bag, also look at the TOG rating. This value indicates how much heat the material retains. A low TOG rating is suitable for warm days or a warm room, while a lined sleeping bag may be nicer in the winter. It is not a fixed calculation: every child is different, and material, humidity, and clothing underneath also make a difference.

Ensure the sleeping bag fits your baby's length well. A sleeping bag that is too large offers insufficient safety, and a variant that is too small hinders freedom of movement. Sleeveless models are often a fine base, while zip-off sleeves can provide flexibility when the seasons change.

Still want to use a blanket? Keep it simple

If you prefer to use a blanket instead of a sleeping bag, choose one light, well-fitting baby blanket. Lay your baby with their feet almost against the foot of the crib, on their back. Tuck the blanket in firmly and low at the sides and do not let it come higher than the shoulders.

For many families, a sleeping bag remains the most manageable choice, especially as babies become more mobile. However, a blanket can be appropriate if your baby is young and you make up the bed carefully. Never combine a blanket with a duvet and do not add extra loose layers if the room is already warm.

Always lay your baby on their back to sleep

A carefully made-up crib works in tandem with a safe sleeping position. From birth, lay your baby on their back to sleep, on a flat and empty mattress. This position offers the safest foundation for independent sleep. If your baby later turns from back to tummy and back again on their own, you do not need to keep turning them over. Do ensure that the crib remains empty and that the mattress base is in the lowest safe position.

For tummy time during the day, the opposite applies: it is valuable for motor development, provided your baby is awake and you are present. This allows your child space to exercise neck and torso muscles, while the sleeping environment remains a place for rest.

Fresh, calm, and practical for daily use

A beautiful crib is easier to keep tidy if you plan ahead. Have multiple suitable fitted sheets and mattress protectors on hand so that you can change them quickly after a leak without having to do laundry all evening. Wash bedding regularly and always follow the product's washing instructions.

Ventilate the nursery daily, even in winter. Fresh air helps keep the room pleasant, but avoid drafts directly near the crib. Also, do not place the baby crib right next to a heater, window, curtain cord, or power outlet. A quiet corner of the room, out of direct sunlight and away from loose cords, provides a safe and calm feeling.

For atmosphere, you can play with colors, a beautiful lamp, wall decor, and soft textures outside the crib. This creates a nursery that feels warm and personal without compromising on safe sleep. It is precisely that conscious simplicity that often gives a nursery its most refined look.

Check the crib at every developmental stage

The way you use the crib changes along with your baby. A newborn lies still, but a few months later, your child can unexpectedly turn, grab, and pull themselves up. Therefore, check regularly if the mattress still fits well, the fitted sheet is taut, and the bed base is low enough.

Also, remove anything your child can use to climb on as soon as they become more mobile. Think of a mobile hanging within reach, a large stuffed animal, or a hanging canopy. When in doubt, always choose less in the crib and more peace around it.

A safely made-up baby crib doesn't have to be complicated. With a suitable mattress, a taut fitted sheet, a good sleeping bag, and an empty sleeping environment, you give your child something valuable: a quiet, secure place to grow and dream, every single day.