OT signs for my boy (14.5 months) are clumsy, uncoordinated and wingy behaviour - in other words cries at the slightest thing. We are mostly on 2 naps but in the midst of doing 1 nap as well as sometimes he does a 12.5 hour night (so then it's a one nap day). I tried doing only one nap every day to see if his body could adjust but it resulted in shorter naps and shorter nights then in the behaviour. Another major thing for my son is if he wakes up crying in the morning from his night sleep - that's a big big sign that it's a 2 nap day - no question. That's the first sign that he's heading into OT land, even if he's had a great night sleep, if he wakes tired it means a catch up day for us. He also becomes fussy with his food when he is tired. So for us it's quite obvious as his entire temperment changes... my sons OT signs look like bad teething signs. So I'm following cues with his 2-1 transition which is very frustrating as I'm never sure what the day is going to be like until I get up, but by doing it this way, I have a happier child. He is my second, so there are days where I just have to push him to one nap if we have something on and deal with the ratty afternoon behaviour, shoot for an early bedtime and no that the following day is a 2 nap day to catch up. We have had the past 3 days of only 1 nap due to 3 12.5 hour nights in a row so we may be moving closer to 1 nap but I will be keeping a close eye on the clumsy, uncoordinated behaviour and the crying at the slightest thing... HTH
