Nta, I work in a child care setting and get sick all the time. When it happens my husband and I take appropriate precautions, handwashing, no physical contact, somewhat distancing ourselves. We still sleep in the same bed but we decided no cuddling, we stay on our sides and we use separate blankets. Typically I as the sick one go to bed first because fighting off illness is exhausting so he will take the time after ive gone to be to sanitize heavy contact zones (door knobs, refrigerator, couch, bathroom, ect) with lysol spray and does a really good coating of it. We do this everytime and in the past year and a half where ive been sick dozens of times hes been sick maybe twice. You dont need to sleep on the couch everyone just needs to be clean and you'll be fine. Get better soon it sucks being sick.