Even after her sloshed up meals had been all absorbed and used to heal her wounds, among other thing, and the mermaid woke up with a stretching yawn, she'd still be sitting in a foot of sea-water, putting pressure on the keel until she got any other orders! Though, she might ask if she should take some wax, tar or resin or something and try to stuff the cracks from the outside as well, now that she had healed up completely, if the captain or lead carpenter ever passed by!