What we look at beyond a standard sleep study
A polysomnogram is a good start. It is not the whole picture.
- Cortisol rhythm — the #1 driver of fragmented sleep in adults 30–55
- Thyroid function and its effect on deep-sleep drive
- Estradiol, progesterone, and perimenopausal patterns in women
- Blood sugar stability overnight (CGM data when relevant)
- Nervous-system tone — HRV, sympathetic dominance, trauma load