I want to stop using diapers for my three year old in the night, but afraid that it would affect his sleep. Should I wait?

We took our daughter out of night time diapers when she was 2.5, but friends carried on till their kids were 4-4.5 years. If you think your child is ready now, then start him off now. Here are a few things that helped us transition: 1. Teaching him how to recognise the signs from his body, that he needed to pee. 2. Early dinner and reduced liquid intake for about 1.5 hours before bed time, and 2-3 trips to the bathroom before sleep. 3. Alarm clock for us poor parents to wake up around 4 am to take her to the bathroom (each child has a different rhythm and you need to find your child's) for about two weeks. 4. A rubber sheet on the mattress in case of accidents. It took us about a month before we finally settled into diaper free nights.