Seeking a free queen-size mattress that is soft or plush (not firm) for someone with back issues. The mattress currently being used is 19 years old and is causing significant pain, not only during the night but throughout the day as well. Their existing back problems are being aggravated by the mattress, making it difficult to sleep comfortably and affecting their daily quality of life. A clean mattress in good condition would be greatly appreciated. Unfortunately, we do not have a vehicle at the moment, so delivery would be needed. Thank you for your kindness and consideration. Any help would mean a great deal to us.