Waking up thinking i dropped my baby

For the past few weeks there has been a few times where i wake up and think i have dropped my baby off the bed. He sleeps happily in his bassinet in our room and does not sleep in bed with us. Sometimes i wake up from him crying and have a momentary freak out but see him in the bassinet and am relieved. Other times like last night I woke up and he was happily sleeping in his bassinet. Since he wasnt crying i for some reason checked the bed and floor before looking into his bassinet. have never dropped the baby or fallen asleep with him in not being in a safe place. Is anyone else having these momentary freak outs?