Monday morning is bullshit poem.

I was happy this morning, as I woke up in bed,
Then realized it was Monday and I faced the day with dread,
For somehow, whatever comes my way, my temper is displayed,
Just mentioning ‘it’s Monday’, my nerves, they become frayed.
The day will be just a ‘ write off’, it’s no good me trying to do
Any sort of reasonable job, things won’t go right. It’s true!
It’s like a ‘cloud’ which hangs around and never let’s you be,
Whatever I attempt to do, disaster follows me.
If I could sleep through Mondays, then that would be just bliss!
Then Mondays wouldn’t have happened, I’d have given them a miss!
— Monday Morning, Ernestine Northover

(Illustration found here).

Sunday night, Monday morning is the hardest for me to handle, and I guess there’s a reason.
From the UK’s Independent:

Your gastric juices kick-start your appetite in the morning, adds Professor Kevin Morgan, of the Sleep Research Centre at Loughborough University.
But if your routine is disturbed, for instance because you lie in at the weekend, your body has to catch up on all this when you wake.
The same happens on a Monday morning after a sleep-heavy weekend as the early start isn’t expected.
What you can do:
The solution is as simple as sticking to a pattern and not sleeping in at weekends.
“This will help synchronise with your body’s natural rhythms and also prevent the feeling of ‘sleep drunkenness’, where you over sleep and don’t feel good afterwards,” says Prof Morgan.

Weekends, though, were created to sleep in — WTF.