did you swaddle your baby? actually i dont really encourage swaddling cos i feel that a baby should be 'free' from all the swaddling so their limbs can 'exercise'. but if your baby is a light sleeper, you can try the swaddling method, it can give baby sense of security. pacifier also can gives baby sense of security (this is what my pediatrician told me) but some parents are against it.
dear son is also a light sleeper, but if we leave the purifier on, he will sleeps better. if the purifier is not on, the whole room will be very quiet and any slight noise outside the room will wake him up easily.