i am planning a separate room for the baby, very very close to our with the door open between the 2 rooms and the netrance to the baby's room is only from our bedroom, a video camera on baby's cot and one of those mattresses that bip if the baby stops breathing, though not proved to help for SIDS i am going to do it. Also no blanket in the cot or anything else there. Baby will sleep with one of those blankets that you can wear. Ofc i will be checking the baby very often by camera and also going to its room. I dont see why the SIDS risk will be bigger because it will be 5 meters away from me. Not that i will forget it there and go look at it again the next morning...
Besides the reason of oh sleeping i mostly do it for hygiene purposes. I want a certain temperature in the baby's room and the cleaner, less allergenic environment that i can achieve. Also me and oh we are both doctors and that means we come in contact every day with lots of sick people...carrying at home all sort of viruses and microbes... if i can spare the Lo from breathing all that all night in a room with closed windows then i will do it.
Also in the babys room will go a single adult bed for those nights that Lo is sick, unsettled etc and needs constant supervision.