Not getting to sleep on time?

When I worked nights, it was difficult to go to sleep immediately afterwards.

If you think about it, it makes sense. You're all wound up from work. Most people get oof work around 5 and don't go to sleep until 10 or 11. Couldn't you work out right before work, at like 1:00 in the afternoon? The gym would be wide open!

Try doing some yoga or stretching before you go to bed. It's a good way to transition your body from working to sleeping.

A lot of things can affect ability to sleep... and many of them have to do with your nighttime rituals. I've read multiple articles that reccommend not using the computer or watching television within an hour before trying to sleep because the bright lights of the screens tend to trick your brain into thinking it's daytime and should therefore be awake, keeping you awake at night when you're trying to sleep in your bed. Another thing many articles suggest is hiding the alarm clock so that you can't see it from your bed. If you are watching the minutes tick by, it will only worry you more that you're not getting enough sleep and worrying like that will keep you awake. Also, they recommend not doing anything in your bed besides sleeping (and sex), because doing things like reading and watching tv and being on your laptop/ipod/phone etc. will dissasociate your bed with the idea of sleep. I've done this for years now... I only only only sleep in bed. No reading, no sitting on it, no laptop, no tv while in bed, and because of this, whenever I get into bed, my body automatically knows "okay, it's time to sleep" and it's not confused by "well maybe she wants to stay up and read/talk on the phone/etc" because I never do any of those things in that setting. Likewise, lying in bed when you CAN'T sleep is also bad because then you'll start to associate your bed with not being able to sleep, which will keep you awake even if you're tired. So if you can't sleep, get up and go elsewhere to wait until you're able to sleep and try again.
I know it's really hard to not entertain yourself with the computer or tv,especially if you can't sleep, but it'll only stimulate your brain and make you more awake than if you didn't. One thing that helps me is getting ready for bed with a ritual that I only do at night that helps my body know it's bed time and helps me "wind down." Of course, there's the usual washing face/brushing teeth/putting on pajamas that we all do, but in addition I always read my Bible before going to bed (take note I read it at my desk, not in bed), which sets the mood for me at least (maybe if that's not something you do, anything else relaxing could work, it could be doing a sudoku or preparing the kids lunches for tomorrow or anything else you do daily that could become a "trigger" for inducing sleep). Another thing I enjoy doing before bed is stretching. A few light stretches to help your body relax and to loosen up your back and such can really help your body feel ready to sleep.
Of course, all of these "fixes" take time to establish the habit, but hopefully these suggestions help!