SIDS and sleep

Dominique

My baby just turned 16 weeks. Just recently he started to try and roll to his belly during the night . During the day I let him nap on his belly if I am not busy . I get really paranoid when he sleeps on his belly and now he wants to at night . I’m so afraid of him suffocating or something during the night while I’m sleeping . Is there anything I can do to prevent this or to keep him from rolling in his sleep