>> Maybe it was just a fluke or something > Night time is equated with freedom I'm middle-aged. I think my testosterone-levels are falling (sex-drive diminish

>> Maybe it was just a fluke or something > Night time is equated with freedom I'm middle-aged. I think my testosterone-levels are falling (sex-drive diminishing, at least). Paired with that I've had less depression [desire a season of grief]. But also I've had periods of morning wakefulness. Someone said downthread "you've just aged". Seems to me, on n=1, like I'm transitioning in my sleepy times. I'm getting up early (for periods of days/weeks at a time), but it's the 'waking and feeling wakeful' that is driving it. On the flipside, I get super-sleepy after lunch. If the drive to get solitude were the cause, then night-time provides that still in my home, despite me finding myself drawn towards being an early-bird (but still only for short periods of a few days to a few weeks, so far). Of course I could just have a brain tumour, but it would be interesting to see some broad studies on sleep pattern changes in middle-age?