This may help. Usually when we go to bed we bring everything (baggage) with us.
So instead of falling asleep we begin to wander within our minds, with unsettled buisness.
So to distract our minds what I suggest deep breathing along with counting backwards starting with 99. Each number should take a couple of breathes, breathing in to a full chest and as you breathe out, inwardly feel that deep exhale releasing all the tension you may have in your body all the way to your lower back. Stay with each number you may recognize some numbers are more comfortable stay as long as you like or continue to the next. You can also use a visual picture if you want relaxing under the warmth of the sun/or lying outside under the stars. Outside thoughts suggest to the mind of openess or if tight spaces soothes you picture that.
So with a visual picture, the brain working the nimbers, and the deep breathing/releasing you should fall asleep within a few minutes.
This will also benefite your heartrate as you relax.
I hope this helps.