I generally wake up when 5 kilos of fur jumps on my bladder and shouts "MEOW!"
However, in my life before cats I really struggled to wake up for a 9-to-5 until I got an alarm with a lamp that lights up very gradually, simulating sunrise. I was surprised at how well it worked and definitely recommend them.
I had a Bio-Brite model, which I don't think are made nowadays but google for "alarm clock lamp sunrise" and there are lots of alternatives.
However, in my life before cats I really struggled to wake up for a 9-to-5 until I got an alarm with a lamp that lights up very gradually, simulating sunrise. I was surprised at how well it worked and definitely recommend them.
I had a Bio-Brite model, which I don't think are made nowadays but google for "alarm clock lamp sunrise" and there are lots of alternatives.