Any mamas out there, please help!!

My 3 week old was doing great sleeping in his bassinet, but lately I can tell he's getting uncomfortable so I started putting him in his vibrating bouncer a few days ago. He fell right asleep in it & now it's like he will only go to sleep & stay asleep in it. He wakes up fussy if I put him in his bassinet at night.
 
What do I do? Is it okay that he sleeps in his bouncer? 
I'm considering buying an electric vibrating swing because this one doesn't bounce itself & it gets tiring bouncing him at 3am. I don't want to put him in his crib yet because I like him in our room for now where I can keep a close eye on him.