As part of the trial, staff were given a specially designed pillow and asked to fill in a detailed survey before later speaking to sleep posture expert James Leinhardt.
Mr Leinhardt has spent 15 years in the NHS working with patients with complex injuries, before educating people on sleep and spinal health.
Ms Baker said: “It was a robust, in-depth questionnaire with different pictures asking about sleeping positions.
“I then had a discussion with James about how I sleep and he was really knowledgeable.
“He unpicked that I was sleeping in an incorrect position which was causing some pain.”
Ms Baker said that as a result she had been advised to use extra pillows to help with hip pain and neck alignment.
“It has made such a difference. It’s so much easier to get to sleep, and when I wake up I’m not in pain. I feel so much more relaxed.”
The scheme has been shortlisted in the Workforce and Wellbeing Initiative of the Year category of the Health Service Journal awards.
Winners are due to be announced at an awards ceremony in London on 19 March.