L.,
I have a 5 1/2 yr old son, who just started kindergarten. He still uses a diaper at night. I choose not to use pull ups because they are not as absorbent as diapers. My son does fine during the day and goes to the bathroom independently. At night, before bed, we have him go to the bathroom before putting his diaper on, he still wakes up with a "big pee diaper." Also, he will have a hard time going to sleep if he has to make a bowel movement, so he gets out of bed a few times until he realizes that he has to go and he takes off his diaper to go on the toilet. A few times at night, he has soaked through the bed, so I went to BABIES R US and bought the bed liners that are rubberized which I put over his mattress pad under his bottom sheet. They work great!!!
I wouldn't make a big deal of it. Kids will out grow it in their own time. If it becomes an issue as he does get older (2nd grade and over), then I would discuss it with your pediatrician - they have medication that is used to help with kids who wet the bed.
I just recently switched from Pampers Premium to Huggies overnights and they work great. Again, I still use diapers at night vs pull-ups due to their better absorbancy.
L. Kandell, MS, RD, IBCLC
Registered Dietitian/Pediatric Specialist
International Board Certified Lactation Consultant
AFFILIATED NUTRITION CONSULTANTS, LLC
Scottsdale, AZ 85258
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Mother of two, 8 yr old daughter, 5 1/2 yr old son.