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?

My gal was about 3 yrs old when she was completely diaper free at night and during nap. It was tough for both parents and child Coz we had to wake up to bring child to toilet. Child might be grumpy and whinny but after this trying period of a week or 2, it is rainbow. I would say a sense of achievement for her and u.