Insomnia

I'm having insomnia problems again. Mainly because the morning light is coming round earler and also the bird's dawn chorus is disturbing me.
I'm a very light sleeper, easily woken by even the slightest noise. I'm also up 4+ times a night to go to the toilet. My GP was very rude last time I saw him, not sympathetic, he refused to do anything about my bladder problems.
I used to see another GP, younger and much more competent and much pleasanter but he hasn't been available for consultation for several months cos he's been off ill with back trouble. I heard yesterday that he's taking early retirement.
I'm pretty fed-up - don't feel as if I'm getting good medical treatment now.