Is a wool 240x220 duvet suitable if both partners have a different sense of warmth?
Partially. The separate layers of the Tuur® 4-season duvet offer some flexibility, but don't provide a fully independent setting per side like a true "his and hers" duvet. If you have very different warmth needs, consider two separate 140x200 single duvets instead of one 240x220 duvet.