ed meds, yes some meds do play up with your erections, i have 3 medicals problems (1) narcolespy(sleep apnea) (3) cataplexy . with out medication which i take daily i would sleep easy 18 hours a day . with these medical problems getting erections can be a problem , havent had a morning hardon for about 10 years .often when i do it goes down twice a quick. have tried many erection medications , the best one is cialis helped great , but the downfall is i cant take my other medication . i have to get in quick before i go to sleep. by the way the most i sleep is 46.5 hours without waking up. iam very glad my wife is understanding and a low sex drive. been married 16 wonderful years and 5 children . so try to relax and dont worry about your erections because its makes it worse , cheers wombat