Been slowly losing my erection power for past ten years

My erection now is 3/4 to 1/2 at best now a days triing to have sex. Why do I sometimes wake up at 2 am and it’s rock hard? I’m in my 50s and don’t think my misses what’s sex at 2 am. Any suggestions other than viagra would be great. Cheers

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u/blindyoureye — 4 days ago