My DS is very similar so much so that we call him velcro boy because he is always stuck to me (lol) at night he is fantastic and goes down at 9.00pm and is asleep for 12 hours (wakes 4 hourly for feeds) but in the day I can't get more than 20 mins out of him... that was until we bought a fisher price swing. He Looooves it and will sleep in it for hours. For a bub like yours who seems to like being on the move, it might just do the trick.

Spring