My Ds has only just (last few months) slept through the night - he's 2yrs! Always had 1 1/2 hours in day.
Today, no sleep at all during day, put him down as usual chatted for 1hr to himself, was happy just apparently not tired. Would have gone to get him earlier 
but was trying to grab quick nap myself as he was up at 5.30am.
Please tell me this is not the end of my lovely day naps??
How long do yours sleep for?