hmmm, our dd is 16 months (today ), and usually she will have an hour and a half sleep during the day... she gets up around 7am and goes to bed around 830pm... some days like today, she didn't have a sleep at all.... if i were you i would let him have a sleep on the days he needs it....

we put dd to bed for a nap when she is tired... some days she is more tired than others.... if she isn't tired then she stays up.... can't you just play it by ear rather than making a decision that naps from this point on will stop?

good luck xx