I think most of masturbation, like sex, is pure psychology. And in the morning, maybe you're not as awake, or aware as you normally would be.

I once was able to reach a spectacular orgasm without moving a muscle. Just by progressively thinking about sex and slowly "growing" my orgasm. It's almost like hypnosis. I recommend practicing with various mental exercises, whatever works to visualize the orgasm and develop it. Sometimes counting helps, like when you're in an elevator. Hypnotists use a similar technique.

You should practice breathing to raise your body's awareness to little details. It might help to get out of bed and move around a bit to get the blood flowing, stretch or something.