well he is not taking more sleep, in fact he is only sleeping around 40 mins each nap. He was on about 4 hours A time and so I thought that maybe he was getting OT due to being ill etc. Today cut right back on A time and still 40 min naps. Seems he cannot nap for longer than one sleep cycle while this is going on. Had to do 3 naps today as a result which just felt weird. Think it might be better to go back to original A times tomorrow. He is not that sick, he has a cold but in himself he is fine. What do you think?