Passionflower helps me deal with anxiety on long flights, or any other stressful situation. As I have tachycardia, I always carry a 1 ounce (30 ml) bottle in my backpack, for those days when my heart unexpectedly starts racing. It also helps with sleepless nights because it has a subtle calming effect. My mother used Passionflower for her body aches and pains. Highly recommend.
I bought this to help with sleep from time to time when I'm feeling a bit anxious before bed after hearing about passionflower on a podcast. I like this particular one as I like the quality of the Herb Pharm brand. It's definitely gentle, but I think it works. Like all herbal extracts, I prefer not to use it daily but rather cycle it in and out and only use it when I need it as I feel it works better that way.
I use this product to improve my sleep quality: I wanna be able to go to sleep faster (without having thoughts running) and avoid those wake ups during the night. I've tried valerian extract from the same brand then passionflower. Passionflower seems to work better for me. I put 35 drops into a bit of water and drink it 30mn before going to bed. Great brand btw I really love their products and ethics!