sleeping

had my baby 2 months ago. & i’ve been having trouble sleeping recently, like i just can’t sleep i think it’s bc my son makes noises while he is asleep & im scared to sleep.. i didn’t have this problem when i had my daughter. like the smallest things w| him just wakes me up.. sometimes i get my husband to get up with him & i sleep in the living room just so i can actually go to sleep.. im so afraid of sids or something might happen. i can be really sleepy and not be able to fall asleep. im scared to take anything to help me sleep bc then i will be in a deep sleep. any suggestions?