The summer solstice is when the sun receives its maximum height above our horizon and as we know there are shorter nights. It is thought that the increased proximity to the sun can be responsible for many people sleeping more irregularly and not having the deep sleep needed for recovery. At this time it is thought that the body produces less melatonin, therefore making it harder to fall asleep. Melatonin is produced in response to darkness and the lack of it creates the feeling of insomnia. If you need help sleeping more soundly during the summer months, try herbal sleep remedies such as lavender, chamomile, or valerian root.