It kind of worries me a little bit because sometimes I go through phases where I have a really hard time falling asleep or staying asleep. It's so weird. It happens or no reason and it last's for like 2 weeks and then all of a sudden stops and doesn't happen again for awhile. Sometimes I'm so tired and I really want to fall asleep but I just can't. I try everything, melatonin, warm milk, an eye mask and a fan or white noise but nothing works and then all of a sudden I'm fine again and no problems.