A sling is a lifesaver esp a Hug-a-bub style wrap where bubs will be wrapped up close to your body. They will stay there all day quite happily sleeping and feeding as required. It also stops people being able to hold or pass around the baby as they are so snug. You can give people a peep but just say that bubs is unsettled and needs to stay put. You should be able to do everything you normally would be the sling on as they are so comfy.