DISCUSSION: "It only comes out at night". Does anyone else have this experience!?

For whatever the reason(s), my current system sounds much better at night.  I first  noticed this back in the 80's when I was stationed in Munich Germany.  I'd get off work and turn on my all SS system (Pioneer SPEC-4 power amp, SoundCraftsman EQ/Pre, Teac X-10R R2R, dbix 224 and dbx 3BX, Technics SL-1200, and Bose 901's).  After about 3 or 4 hours, the R2R sound would be so sweet.  At the time, I had no clue about warm-up time.

Now it takes about 30 minutes for my PS Audio stack to warm up and the SQ is really good.  Later in the evening, the SQ goes to another level.   

Had this same experience, that is until I put in a dedicated 20 amp line and purchased a PS Audio P20.  Power conditioning is a must and it has to be with a product that has super low impedance.  The grid is super noisy.  I am not necessarily pushing PS Audio but I am a fan of power regeneration and in my experience it will get you the best sound at all times of day.  Now it is always midnight with regard to my sound.  I also keep my kit on standby always. Also, during the day, you may want to try a eye sleep mask.  I know that may sound silly but if have found it puts you in a different space when you cannot see anything and can just focus on the sound.  

Just saw a PS Audio video on that same topic....

@gumbedamit  could be interesting to watch. Where might a fellow like myself find such an alleged video sir!?

@axpert ,

"For most, in addition to the factors that you mention, the human body tends to go into a more relaxed state, at least for most people anyhow."

Definitely true for me, but tiredness creeps up on me a little earlier nowadays. However, if I can make it to after 2am I usually start to wake up again.

If most people are either morning larks or night owls, then I'm in the latter group, as I suspect that most music lovers are.

I think we can be sure Romeo wasn't wooing Juliet first thing.

@perazzi28 

"A simple environmental factor-darkness or a lack of light plays a significant roll to sharpen our hearing.  This simple factor allows our brain to decrease visual processing and devote more focused cerebral attention to our hearing."

Makes sense.

There's just a lot less need to be on alert at night.

For a start there's no need to keep checking your smartphone every 20/30 minutes.

Or to worry about the doorbell ringing.