Finally sleeping!

Not done much today except keep this little man entertained! He seems to need so little sleep, just half an hour to an hour during the day, sometimes broken up into little catnaps is all he has. I wouldn't mind if he slept well at night, but he doesn't and is still up every hour or 2 most nights! 
The best time he seems to sleep is from around 7-10pm, when he settles quickly in his crib and sleeps soundly for those 3 hours. Normally. Not tonight though! Tonight it was gone half 8 before he fell asleep, on the sofa, as everytime I put him in his crib he screamed. Wonder if he'll sleep any better tonight?!