About to embark on potty training and have a question about nap times - do you put a nappy on before the nap? DD is generally dry after naps but afraid she might do a wee straight away on waking or if she wakes during the nap, and freak herself out with a wet bed. We have major sleep issues with her so afraid of making the cot an even more scary/anxious place than she seems to find it already. DD is nearly 2yo. TIA.