Jo, in your experience and in talking to other moms, what are these 1 hour 15 minute naps? We've been having handfuls of them too, with the odd 1 hour 30 min or even 1 hour 45 minute naps, but most are 1.25 min naps!!! We're going through the same thing you and Caleb are at the moment, with the varying between 1 and 2 naps days and the two nap days are really not doing any good either, but the A times we have are soooooo long because of the bleeping short naps!! We've done 4.5-5 hours A time before the first nap and it's never given us a consistent nap length. We've had a few days where we'll do 4.5 hours and he'll nap the same as when we've done a few days of 5 hours. I'm stumped.