The answer nobody leads with: fiber type matters less than wicking rate, and the fill architecture matters more than both. surgical menopause is mechanistically different from natural menopause This is worth naming because the bedding advice for perimenopause doesn’t fully translate. Natural menopause creates erratic estrogen, and it’s the spikes and drops triggering thermoregulation misfires. Surgical menopause is different - estrogen is just gone, suddenly. The hypothalamic set point resets to a lower threshold across the board. So you may run hotter more consistently, not just episodically. That changes how you should layer. your husband’s thermal profile and yours are two separate problems He runs warm at baseline. You’re getting vasodilatory heat dumps that can hit hard and fast then resolve. A single comforter that works for him at 2am is actively wrong for you 20 minutes into a flash. Two lighter layers with adjustable overlap beats one duvet for both of you. on fill: wool over synthetic down Counterintuitive but the wicking structure in wool moves moisture better than most synthetics and a lot of cotton fills. Look for 300-400gsm fill weight - substantial enough to feel like a real duvet, light enough to vent. The weight-to-breathability ratio is better than goose down at most price points. on shell: percale weave, not sateen Thread count is marketing. What matters is the weave. Percale (one-over-one) breathes significantly better than sateen, which traps heat. Long-staple cotton in percale is a better choice than a high thread count sateen regardless of fiber origin. bamboo Wicking is actually decent. Where it usually falls apart is durability after washing and fill consistency - worth reading specific product reviews, not brand claims