Many hotels that offer senior citizen discounts allow companions to stay as well, but rules can vary by property. Typically, the discount may apply to the senior citizen's room, while the companion pays the full rate. It's essential to check with the specific hotel for their policy on additional guests and any associated fees. Always verify the eligibility requirements directly with the hotel or their official website to ensure you have the latest information. This way, you'll avoid any surprises at check-in.