My little man (7w5d) has turned into a sleep devil! He will not sleep during the day - this started about Saturday and is driving me crazy. I do my usual routine and it is just NOT WORKING. I get him to sleep in my arms post bf and as soon as I put him in bed - PING- he is wide awake. Is this just a "wonderweek/growth spurt" thing or am I stuck with this?

Any ideas?