Everyone has trouble falling asleep once in a while, or wakes up in the middle of the night and has trouble falling back to sleep. Here are some ideas and links that might help you get a good night's rest...
How to set up a good environment for sleep:
1.block out as much light as possible
2. experts recommend a room temperature of 62 to 68 degrees
3. make your bed as comfortable as possible; use warm blankets but nothing that makes you too hot.
4. add in some white noise from a fan or device
Essential oils like Vetiver and Lavender are helpful. Take 1 to 3 drops mixed with a few drops of a carrier oil and massage into feet, on the back of your neck, and/or pulse points, then breathe in a few deep breaths of what's left on your hands.
Some people find that removing themselves from all electronics an hour before bed time and having a regular bed time routine works wonders.
Restorative yoga for sleep
How the Navy falls asleep
I wish you luck and sweet dreams...