Three days ago I took my 11 week old son for his 2 month vaccination and since then he's very restless at sleep. For his night sleep, Ι breastfeed him, he sleeps, Ι hold him for 30 minutes until he's deeply asleep and put him in his basket. Worked like a charm. The last 3 nights, same routine, as soon as I put him down he starts moving and moving till he wakes himself. He had to sleep on me all these nights, it's like his sleep was mainly light and rarely deep. Is it possible that his vaccination affected his sleep? Has any other parent experienced something similar?