M.C.
M.,
That sweet lady before me had great advice. Just to tell you my son went from 2 naps to one also at 14/15 months, by request of the day care he was in, since it made him miss out on the "regular" schedule and certain activities they thought would be good for him. It worked out pretty well as he was 'ínvolved' in something (as you plan for him with your mom's group). Just get him fed for lunch early, 11:15 latest, and in bed by noon for a good 2 to and a half hour afternoon nap. Then to bed not too late at night (7 p.m. latest). Sleep begs for sleep, so the more he sleeps the better he'll sleep and everyone will be better off for this.