Help with furniture in relation to health issues

Hi, I hope this post finds whoever may read it safe and well.

I wondered if someone might be able to help. I have chronic spinal/hip issues and am finding my furniture is worsening these. It's incredibly painful and I am finding it hard mentally and physically. Does anyone know if there is support for people to acquire suitable furniture (bed, chair etc). I have CPTSD, depression, suspected ADHD and ASD and live alone and cannot drive so I am isolated, it's been over a year with extremely limited contact with friends or family. I use my computer to stay in touch but can't sit at it for long as it's too painful. I'd like to work from home; writing or working with AI... if anyone knows of help for disabled people to do that kind that would be great. I messaged my work coach on the Universal Credit portal today, fingers crossed.

Kind regards,