We share the same bed and it works quite well, I am a night owl, my Husband is an early morning person, he has usually got over the snoring bit by the time I go to bed, so no problem, we both had a problem when he was overweight but he has lost a bit of weight. If either of us have colds, coughs, I usually go into the spare room on the sofa bed, hubby doesnt budge,I apprecate our big bed much more when I go back there.
Why should seperate beds be a problem, I presume you both have good legs to move about if you need to, if separation becomes too much!