What changed thing for you ?
I think partly the menapause, perhaps I am through the worse of it now as I’m nearly 54.
I put a pillow barrier up between my DH and my pillows and this seems to create my own zone for me to cocoon in.
We bought a super king size bed.
Staying up as late as possible, until I am pretty much falling asleep walking up the stairs to bed. Then psychologically I think I’ll conk out and may sleep through the 2 to 4.30 am danger zone.
Not going on my phone in the evenings.
My sleep was so bad before for many years. 3 or 4 hours was good going maybe as a three hour chunk and then later on an extra hour.