How to prevent young children from falling out of bed?

When a child is born, when a parent is always faced with various emergencies, sometimes, as a new mother, we will be confused about how to deal with it.
For example, when a child turns over, he will fall off the bed accidentally. Even if sometimes, you just go to help him wash the bottle after drinking for a short time, you will hear him crying after falling out of bed and hurting.
As a parent, how can I prevent my child from falling off the bed?
1. If the child is young, it is recommended to buy a separate crib for the baby to sleep. There are cribs that can be extended, which can sleep until the child is 3-5 years old. This kind of crib has guardrails on all sides, so the child can sleep comfortably in it before one year old. Mother does not have to worry about the baby falling out of the bed at night.
2. If family members are used to sleeping, this kind of low bed is very suitable for children to sleep, at least don’t worry about him falling off the high bed at night to prevent accidental falls.
3. Put a thick carpet under the bed, and children’s blanket can also play a good cushioning effect. If the child accidentally falls off the bed, the thick carpet can effectively protect it.
4. A tent similar to a yurt, with zippers on all sides, and a cloth block underneath, which can effectively prevent children from being bitten by mosquitoes. After the zipper is pulled, it becomes a closed space, and children are not easy to fall off the bed, which can effectively protect them.