How to help Moro reflex go away?

Emely

My baby will sleep in his crib swaddled, BUT I get so anxious due to once I saw he had his blanket over his nose I quickly removed it and he breaks from his swaddle but he gets scared and moves so much and wakes himself up! He’s been sleeping with us to ease my anxiety , but I do want him to sleep in his crib, he will be 4 months Jan 26!