Second hand, but I've heard that diapers can delay potty training because they keep things drier so it's less noticable.
A couple tips I've seen around the internet:
Put on regular underwear underneath the diaper so wetness is felt more but contained.
Make a bed lasagna. Mattress protector, sheet, protector, sheet. That way when there are accidents you can just rip off the top 2 layers, put it in the wash, and go to bed still protected for round 2.
Ditto on layering the bed. When we started potty training we did away with diapers entirely. I think it took maybe 4 days before they went a day without accidents (not that there weren't any over the next few weeks).
Awesome. Thanks folks.
We stopped with the night time diapers as soon as there was no overnight usage for a few days. After that point, everything went pretty smoothly, we've only had one accident since. If your kid seems to be able to reliably hold it, it's worth trying for sure!
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