Have you ever considered the benefit of an electric bed
We sell new and pre owned electric beds from just £300
Just correctly raising your head by approx 2 inches and your feet by the same which gives you an "S" shaped sleeping position can make a huge difference to your comfort and having a bed that you can slightly change the position of during the night at the flick of a switch can help give a better nights sleep.
I have posted a video of the benefits of an electric bed
Book for Chris to come and see you to explain the benefits of an electric bed and quote you for your ideal bed