Inspectors identified seven breaches of regulations relating to staffing, safe care and treatment, dignity and respect, person-centred care, premises and overall management.
The CQC said patients also raised concerns for the welfare of staff.
“Patients told us that they can see staff don’t get breaks, that staff don’t get a chance to go to the toilet or have food,” inspectors recorded.
The CQC downgraded the rating for how responsive Rampton was from “good” to “requires improvement”, how effective it was remained rated “good”, and how safe, caring and well-led it was remained rated “requires improvement”.
Green said: “We had concerns about the way the service restricted people’s choices, recorded these restrictions, and shared rules in this area with people.
“The hospital also wasn’t consistently meeting the needs of autistic people and people with a learning disability, including not adapting ward environments to their sensory needs.
“However, we saw staff who cared deeply about the people they support and some genuinely person-centred work, particularly in the women’s service.”
The CQC said leaders were “open” about the challenges they faced and had made “some improvements”.
Mark Axcell, the chief executive of Nottinghamshire Healthcare NHS Foundation Trust, said: “The safety, wellbeing and experience of our patients will always be our highest priority.
“We accept the CQC’s findings and recognise where need to do better.
“We are fully committed to addressing each area identified for improvement through a detailed action plan with clear accountability.”
Axcell said since April, the organisation had appointed 19 staff nurses and 29 healthcare assistants and continued to recruit “every month”, and that it had “enhanced training” for colleagues in learning disabilities and autism.
He added: “Whilst we know there is more work to do, I am confident that the positive changes already made provide a strong foundation for further progress.
“I want to reassure patients and their families that we are listening, learning and taking action to ensure we provide the safe, responsive and high-quality care they deserve.”