A baby blanket is for sale in roughly three textile types: cotton, wool and synthetic. Research carried out by VeiligheidNL in collaboration with TNO-Textiel has shown that it is not so much what material the blanket is made of, as long as the bed is made short and tight. The child can not touch the head under the covers, so that there is hardly any danger of heat build-up or not being able to breathe freely.
Whether a blanket is warm enough for the child depends, among other things, on the room temperature where the child sleeps. But a good guide is the thickness of the blanket. For all types of blankets applies: the thicker the blanket, the warmer it is. Do not let yourself be led by the weight of the blanket. Synthetic blankets in particular are very light, but they are certainly not less warm! The insulating effect of synthetic, wool and cotton blankets is virtually the same.
A blanket with a sheet provides good ventilation and you can make the bed very short with it. Furthermore, the bedding can be tucked on the sides so that the child can not slide underneath. A second blanket is almost never needed.
You can also use a blanket in a duvet cover, but the blanket must be the same size as the cover. The duvet cover must be large enough so that you can place it at least 10 cm below the mattress at the bottom and sides. Make sure the cover closes properly. Do not fold a blanket double in a duvet cover.
If your child sleeps under a blanket or blanket in a duvet cover, you have to keep an eye on a few things: