So sorry to hear about your recent experience and loss. I hope that you are coping with the support of your new pdoc and friend Bob. There are always people here who are happy to offer you support too.
Although I can't begin to imagine what your feeling I know it must be a stressful time for you. I found my brother barely alive having fallen through a glass door in the middle of the night, while we slept upstairs. It was many years ago and miraculously he survived, he's like a cat with nine lives, (He and his best friend were run down by a drunk driver, his friend was killed outright and my brother who was walking arm in arm with him walked away with bruising) but it left me a very aware sleeper, I always wake up if someone else in the room gets up to use the bathroom, I am conscious of where and when the dogs move about, it's as if I was an anxious new mum. But it has its benefits I always wake up if my partner is unwell physically or mentally and get to yell at the lazy beeps that think it is ok to take a shortcut across the garden. Always trying to look for the silver lining !
Look after yourself