My nasal strip use dropped from nightly to twice weekly

Down 28 lb over 22 weeks. The NSV I didn't expect: my nightly nasal strip habit has gone from every night to roughly twice a week. Same bedroom humidity, same pillow, no new allergies. My partner says snoring is down too, though I'm not pretending that's a sleep study. I only track it as a binary in my log, so the change is easy to see: 7/7 nights in January, 2/7 this month. Weight loss is slowing; this metric isn't. Anyone else tracking upper-airway stuff instead of inches?