How to help 3 year old sleep in his own bed

Hi there. My son just turned 3 on July 10th. We have shared a room since he was born and I just switched him out of his crib into a toddler bed. He will go to sleep just fine if I’m in my bed across the room. He will lay in his bed, not get up and go to sleep. If I’m not in my bed He is up every 30 seconds. I was just looking for some tips/tricks to try to keep my son in his own bed without me also having to be in bed.

Its just something that will take time. Just stick to it and eventually, he will. Also, decorate his room in something he loves!