How to train the baby at night without diapers: once the baby has been training very well during the day, you can try not to give him to wear diapers at night. But if you explain to him what are you doing, why do so, and to remind him, that means he can't urinate in bed at night. However, you need to put a waterproof pad under his bed sheets, good protection under the mattress. Or, you can buy a bunch of disposable mattress. The mattress contain a hygroscopic material in similar diapers. This mattress is very convenient, but if the baby often wet the bed, cost will be high. , of course, can use repeatedly diaper pad is also a kind of choice, just the baby after wet, you need to hurry up in the new, and washing and drying wet piece in a timely manner. Baby the last thing before you go to sleep at night should be go to the toilet, if the baby is sleeping, he want to urinate in the morning or in the middle of the night, should be able to easily get out of bed, go to the toilet. You may need to be on the side of the head of a bed and a toilet door point night lights, make sure that he can safely and easily to use the toilet. In the morning, regardless of his urine didn't wet the bed, you have to remind him to go to the bathroom. If he didn't wet the bed in the morning, do you want to praise him and encourage him. But you must have a psychological preparation, the baby will inevitably wetting the bed. Not all the baby at the age of 3 can't wet the bed in the evening. If your baby also is such, try again in a few months. A lot of 3 years old baby need use diapers at night. You also might as well consider the use of disposable lala pants, this kind of diapers is convenient to use, and can enhance the independence of the baby.