Nighttime sleep

My son is 9 weeks old and sleeps like a champ in his bassinet during the day. He has a great routine of wake up, eat, play, put in sleep sack, and then I rock him to almost asleep then place him in his bassinet (thar clicks on and off of a pack and play) and hum/sing until he’s fully asleep. He’s does this 3-4 times through the day. However after his last feeding around 10-11pm he will not sleep anywhere other than laying on my chest. He then sleeps until about 4-5 and then again til 8-9. During the night he will not stay asleep in the bassinet. I have even tried laying him on his back next to me in bed but he will not sleep unless he’s tummy down on my chest. Which is hate because I know it is not safe at all. Please help.

(This is him currently)