The Zeez Pebble is a remarkable find - I was having periods with a lot of anxiety and was unable to get off to sleep, and/or slept very lightly, and then felt awful the next day. I also suffer from a vertigo condition, that can be set off by stress. The Zeez has helped all this and helped the vertigo. I get to sleep quicker and the quality of the sleep feels deeply restful - the morning after using it, I feel just NORMAL! - like after a normal sleep, thank gawd. I had tried sleeping pills, but felt grim the next day. With the Zeez pebble, my energy feels steady and I'm not 'wired', so the the vertigo is better. If in doubt, try it - they offer a 30 day money back guarantee.