Friends of ours returned recently from 3 weeks in a Florida villa. Mrs was telling me last week that her sister had to spend the night in the emergency room.
She was bitten on the shoulder by a spider. She didn't think anything of it at first as it was inside the villa and she thought that the bad spiders were all outside. Several hours later she felt very unwell. Turns out it was a Brown Recluse.
Just a little warning - indoors doesn't mean safe.