Hi Nita:
The sleep...doing things to tire you out helps. A long walk, working out on a bike, some serious gardening. If that fails, I find a good single malt scotch (a generous dollop) over ice and a very boring book (think "War and Peace" while cuddled under the blankets can help. Leave the TV off...it is just a distractor that keeps you awake.
Your other question...it does eventually get easier, but being an honest sort here, the first year is the hardest. Every first is poignant, bittersweet, and yes filled with tears. I can still remember that first year after my mother passed. Some 17 years later, the first part of May is just to much for me to deal with (her birthday, death day and mothers day all fall within one week). The first (name your event...Easter, 4th of July, Christmas) of everything without your loved one is very hard to get through.
Be easy on yourself, try not to be alone on BIG important days...
Sorry for your loss....God's Speed in finding some healing and peace.
Daddy Pops