Against Baby Sleeping w Husband

Jasmine • Journey Milan is my World.👑💕
At night time, I started going to the gym to get back into shape & I leave my 4 month of daughter home with my husband. When I come home, both of them are sleep & shes laying next to him on her blanket. 
I tell him every night to put her in her bassinet (which I literally put right next to him). I have told him about SIDS & how easily it is for him to roll over on her & not know it because he is the hardest sleeper I have ever known but he refuses to listen. I have came home with my child being close under him to were if he moves an inch, he will be on top of her & its keeps me extremely paranoid.
 How can I change this??