If one partner snores or takes up the whole bed, preventing the other from getting a good night's sleep, a separate sleep may be the best way out of the situation. And there's nothing wrong with that. And if you study cuddling positions, you will see for yourself. The main thing is that you both were comfortable, then you will have all day to cuddle
If it were up to me, I would sleep by myself. I love to take up most of the bed and I hate it when someone touches me in my sleep. So I know what you mean.