So I have breath phobia, always had it. My husband and I sleep in a king size bed, I keep a squishy down pillow, longways between my husband and my pillow at night when we sleep. He knew I had breath phobia when he married me, so the pillow doesn’t bother him and I feel more comfortable laying in his direction as we sleep.

It doesn’t separate us as it’s only up near our pillows and we call the pillow the sneeze guard, it’s just the name we call it. It’s a part of our happy marriage. May work for you.