We’ve just bought a creamy white fabric lounge and have a toddler and baby. I’ve also bought IKEA blankets that will completely cover the lounge. I hope I don’t regret the decision to go white and fabric. Doesn’t get dumber than this, but I’ve always wanted a white/cream lounge.
I think the tricky thing is if you haven’t purchased a couch that comes with interchangeable covers then you may need to get them custom made which can be more expensive than a new couch which comes with covers like IKEA or as the others have suggested!