Thinking of you and yours, Helen, and glad you have that feeling of peace.
We had this situation exactly with my gramps twice (chest infection, not wanting to send him to hospital but keeping him in the surroundings of his NH which he knew and with star nurses and doctors who were oh so compassionate and caring, with him and with us) and with Aunty Jean once. I couldn't be there with nan when it happened to her...
...and I remember the same sense of peace and calm while we were all together with them as a family, or the ones of us that could be there at the time. Almost totally at ease, sharing lots of memories, reminiscences, laughs and tears...support for each other and for gramps and Aunty Jean.
Take good care,
Tina xx