I want to move baby into his crib but I’m afraid I won’t hear him on the monitor!

My 4MO just outgrew his bassinet, and I don’t get good sleep bed sharing with him. I want to move him to his crib full time (I always put him down in there and then move him to the bassinet while asleep), and his night time wakings are around the same time every night for the most part… I wake up to him stirring next to me, but unfortunately, I am a very heavy sleeper typically and it is very normal for me to sleep straight through alarms. I’m afraid if I move him into his room, I won’t hear the monitor and he’ll cry all night. Any advice?