I would say it is not because of 按摩三陰交. There might be a coincidence, like you may have some other problems which cause your trouble sleep.
1)此穴是婦科疾病的克星,是婦科主穴,對婦科疾病很有療效,如:子宮功能性出血、月經不調、經痛、帶下、不孕,崩漏、閉經、子宮脫垂、難產、產後血暈、惡露不行等;
(2)此穴還能治療男女生殖器官的疾病,如:遺精、遺尿、陽痿等;
(3)此穴還能使腹脹、消化不良、食欲不振、腸絞痛、腹泄、失眠、神經衰弱、全身無力、更年期綜合症等得到緩解。