© 2017 Informa UK Limited, trading as Taylor & Francis Group Background: While progesterone affects sleep, different types of it might affect sleep differently. Methods: One hundred Thai women, who complained of insomnia, visited the Menopause Clinic at Maharaj Nakorn Chiang Mai Hospital, Chiang Mai, Thailand from February 2014 to March 2015, and were divided randomly into two groups. Both groups received daily hormonal treatment that included estradiol valerate (progynova) at 1 mg. The first group also received dydrogesterone (duphaston ® ) at 10 mg and the second group micronized progesterone (utrogestran ® ) at 100 mg. The clinical symptoms and Pittsburgh Sleep Quality Index (PSQI) were recorded for three consecutive months after treatment. This study was registered with clinicaltrial.gov (code number NCT02086032). Results: Sleep quality improved in both groups (10.52 ± 4.27 to 4.91 ± 3.15 in the dydrogesterone group and 10.16 ± 3.60 to 6.27 ± 3.04 in the micronized progesterone group, p value 0.08). Women in the micronized progesterone group had fewer overall side effects than those in the dydrogesterone group. Conclusion: Sleep quality of peri-postmenopausal women with insomnia improved dramatically after the first month of hormonal treatment. However, more participating patients are necessary to ascertain the differences in sleep quality from dydrogesterone and micronized progesterone treatment.