Anyone here have experiences using trazodone for sleep?

[triron]

The last 4 yerars (at least) I have not had problems sleeping until an upcoming hernia surgery approached. for a few weeks before and for over 2 months afterward I have had pretty bad problems with anxiety especially as it relates now to sleeping at night.
Used trazodone for 17 days until a month ago and seemed to sleep ok but not entirely satisfactory. After stopping sleep problems returned again. So I started back on traz a few nights (3) ago ; so far it has not helped. I took it 2 out of 3 nights; best night sleeping was without it (but I was very tired that night). I am a former triathlete and my activity level is very curtailed due to a shoulder and more recently an injured SI joint (getting better). I was told by pharmacists it takes 3-7 days for traz to kick in. I got quite agitated last night but don't know why. Any responses I would appreciate very much.