Yup, looks like a flea ... I would definitely wash blankets and sheets, and anywhere she has been lying ... and sprinkle any carpets with flea powder and vacuum ... they can get in the carpets and it becomes a nightmare! And yes, they will bite people - my sister once had a house that had fleas in the carpet when she moved in, and as she is allergic to flea bites, before they realized it, her skin looked like someone attacked her with a big pink marker making polka dots!