Clare Kirkbride, a senior staff nurse at Katharine House Hospice, cycled in between her shifts at the hospice to raise funds to save it.
The 39-year-old, from Rugeley, has been working at the hospice for five years and said it is "vital" for patients and their relatives.
She said: "I was doing it between my shifts as I'm a nurse at the hospice so I was working nights and early shifts then cycling.
"I did two weeks of nights during October and the weather was really bad during the beginning of the month, so I was soaked sometimes.
"I chose 150 miles as it's the distance between my house in Rugeley and Big Ben in London.
"I am raising money for the hospice as during Covid the main fundraising events have been cancelled.
"I'm just an amateur cyclist, but I thought what can I do that is a challenge to me.
"The hospice is such a vital service to the patients and relatives, and we've got the inpatient unit which is where I work.
"People come in for respite, symptom control and end of life care and we've got a team which go into people's houses.
"A lot of what we do is over Zoom at the moment.
"Each time the cycling was hard I'd think about the people I look after and what a vital service it is to them.
"On one ride I was chatting to a chap who I was telling what I was doing and he gave me £20, people have been really kind."
To donate visit justgiving.com/fundraising/clare-kirkbride