Trazodone is an antidepressant, but you take a lower dose when you're using it primarily as a hypnotic (despite the cool name, a hypnotic is just something that makes you sleepy). It's pretty widely used and I didn't really have any problems with it, side effect-wise (the sedation IS the main side effect of the antidepressant).
I still swear by
melatonin, if you want something OTC (other than benadryl, Zzzquil, Tylenol PM - almost all of these things are diphenhydramine, aka benadryl. Tylenol PM or Advil PM just add the pain reliever and some extra mark-up). I don't do well with most sleep meds - they either don't work (benadryl) or I go fucking nuts (I STILL get shit from you guys for what happened when I tried to take ambien...), but melatonin pretty reliably knocks me out in about 30 minutes. It does tend to make my dreams more vivid, which is interesting, but not unpleasant.
I saw a sleep specialist a while back, because I generally sleep very poorly, I get day-night reversal, or I simply have delayed sleep phase (so I want to sleep, say 4AM-noon). The sleep specialist also had me take melatonin, but a smaller dose. At bed time, the pills are usually 3mg.
To move up your sleep phase, he had me take .5mg around dinner time, which I progressively moved back to about 4PM. This didn't make me immediately sleepy, but did get me more into sleep mode by 11PM or so. The effect is more subtle (with 3mg of melatonin, if I haven't used it in a while, I'll start nodding off while reading in bed. 30 minutes after taking it), but it did seem to help. It can be a little harder to find 1mg pills to split - I found them in a health food store, whereas my grocery stores all carry 3mg pills. I stopped doing it because...I'm an idiot? I'm not sure why I'm so bad at doing these little things that I know are good for me.
I also had a
light box to use in the morning. These can be a little pricey (~$100), but many people swear by them. You set it up in your peripheral vision and read the morning paper or whatever for 20-30 minutes. Again, the effect may be less dramatic and instantaneous than you'd like, but it really can give you more energy, boost your mood, combat SAD, and entrain your circadian rhythms. I have an older model of
this Philips light box and I really like it. It has timers, an alarm clock (so you can wake up and do your light therapy in bed), it can gradually turn on to wake you up, it holds a battery charge forever, etc. It is $130, but there are cheaper options, but it can save you a lot of money in coffees, sleeping meds, and antidepressants.
Here's my secret weapon, too:
MAGICAL SLEEPYTIMES GLASSES. I was skeptical, but my psychiatrist turned me on to them. I thought they sounded like straight BS, but I eventually got desperate enough to buy a pair. So they are these incredibly dorky orange-tinted sunglasses that you wear when you get into bed, 30-60 minutes before you want to fall asleep). You can then read by your bedside lamp, use your iPad, whatever. They filter out the same wavelengths of blue light that the lightboxes project. This all ties in to your brain's melatonin circuitry (blue light, in your peripheral vision, suppresses production and release of melatonin, a hormone that controls your body clock and makes you sleepy).
I need the ones that fit over glasses, and I'll just say that they are
highly effective contraceptives, too, because no one will ever have sex with you while you're wearing these things. So anyway, I got them, and my wife would laugh at me uncontrollably (instead of smoldering with barely contained lust for all dis, which is more what I'm used to, obviously), but I would just PASS THE HECK OUT. So she finally said, "give me those stupid things!" And I'm like, okay, they really are NOT a turn on, and we're both laughing, and before too long, she is out like a light! It really is like magic. I need a new pair, because we loaned them to a friend, who also figured it was bullshit. Yeah, so, not getting them back. Oh, and they also help reduce your risk of breast cancer, because there is some circadian link there.
YMMV with all this stuff, of course, but aside from melatonin, these are all drug free. I'll also toss in Sleepytime tea (Sleepytime Extra has melatonin, actually), avoiding all computer screens around bedtime, keeping your bedroom chilly (the lower temperature promotes sleep), exercise during the day, avoiding long naps during the day, and not letting my cats sleep on your bed because they WILL put their paws in your mouth when you nod off.