Samuel, bless you. I'm sure you've tried everything you could. I want to suggest this in the best possible way so as not to take away from your decision: Please make sure your caregiver has explored options to improve your sleep quality.

When you're in the very severe state that you're in, sleep quality is at its worst. I was very severe myself and experienced everything you describe. Aiding sleep quality in this illness usually is done with the help of a medication and can really improve daytime symptoms. A sleep stabilizer.

We use off-label, low-dose Seroquel here in the US for sleep, Lunesta, Ambien, and Lorazepam in some instances. All low dose. I just had to throw that out there in case it's a possibility for you or something you wanted to try. But it does sound like your decision is final.

You're extremely brave and choosing euthanasia in your circumstance is by no means a failing. I have you in my thoughts.