The Lavender will actually help in falling asleep as well as some herbal sleep remedy's, but stay away from melatonin based one because they can affect your POTS. I use L-Tryptophan based one's when I need them. I have also noticed now that I sleep sound and dream that some dreams will trigger my fight or flight response and actually wake me up. I forgot my night time dose of Metropolol and had a especially vivid dream and woke to find my pulse trip hammering. I increased my night time dose from 27and 1/2mg to 50mg ( with my Dr's consent) because I found it helped me wake up fewer times during the night.