co-sleepers here, 5 children in 11 yrs so yes we had sex with baby/toddlers in the bed, we have a futon so no bouncing and a toddler bed next to the bed so if we wanted a bit more space we could shift them or we have sex elsewhere in the house.
its just never an issue.
and i remember the sex and bfeding thread, think we are talking about a baby that was just doing the comfort sucking/sleepy feeding where they are latched and mum and dad were in spoons postion, not energetic sex, just more of a very close cuddle, not all sex has to be about orgasm etc it can just be about being close and connecting as a couple. a sleeping baby wont have a clue anyway and its not a SS issue.
*disclaimer havent read the link to the DM, really cant be bothered, i had enough cliches from my own mother who assumed that a baby in bed with us meant no sex and that dp would leave (rolls eyes)