my little boy just turned 1. he has always been a great day sleeper but the last few days has refused to have an afternoon sleep. he has spent a good hour and half talking in his cot. just wondering if this is too young to be cutting down to 1 sleep and also some tips of how to do so. i'm worried he will only sleep for hour or so which doesn't seem enough for the day. he sleeps through every night from 6 to 6. thanks.