Hi OliverRowland
Yes you can go shorter than 45mins when/if needed. It all depends on what time bedtime you are happy to go with and if he will keep actually going to sleep at a naptime that allows for a suitable bedtime. Lily got so that she wouldn't take any length nap, after going to 45min nap, that was early enough to prevent a 9.30pm bedtime, or at least finally going to sleep at 9.30pm. So I decided to stick with an earlier nap time and allow her max 30mins if she did fall asleep, which wasn't often at this point. If she wasn't asleep by 1.15pm then I wasn't going to let her, to preserve a 8pm bedtime max! Shes been totally nap free for a couple of months almost and its not so bad, can take some getting used to not having that break in middle of day, but its nice to be able to utilise the whole day and no longer be tied to nap times at home.