Hello @outlander 🙂
I repeat the word 'the' as it doesn't lead to any thoughts in particular.
I have to have everything dark and quiet, so on the occasions where I've had to sleep in someone else's house, I will place towels, blankets, cloth of some type, over anything that lights up (so many gadgets in most houses) and under the crack at the bottom of the door, etc. I will also gently place a pillow over the top of my head, which also helps with the light and is a good muffler for sound (another thing very common in most houses - fridges, clocks, neighbours and the likes).
I will get up and move, even if it's just pacing, to try and help my muscles tire.
I use herbal sleep aids (don't care if they actually work, so long as I believe they do:) )
I will use a relaxation method of imagining I'm laying on the cloud and letting the most wonderful softness and magical calm seep into my body as is sinks into it.
Sometimes I will just let myself lay there, even if I can't sleep I can still relax my muscles and allow myself to feel 'in control' that way.
Reading is a good one, I used to use almost text type books, complicated ones, as it would tire my thought out. (My eyes are getting older now though)
Deep breathing with a strong focus on what I'm doing definately helps my mind off negitave thoughts.
I'm yet to 'look into' mindfullness, so I think your one up on me there:)