Baby sleeping, help

Janel
My baby is four days old. He slept awesome in his bassinet thing at the hospital. But at home he now won't sleep in his bassinet, I'm using a play pen that has a newborn bassinet sleeper attachment until I receive my actual bassinet. I put him down and in a matter of minutes he's squirming awake no matter how full or deep sleep he was. I have a 4 year old too so I'm just exhausted, and start getting anxiety at night which worries me cuz with my first I had post partum depression. But back on topic, he has to sleep with me but I don't want anything to happen because of that . it's my husband, 4 year old, and me then baby cradeled in my arms. Any tricks that have worked for you guys?