Does this $4k mattress cover give you a better night’s sleep?
by John Davidson · Australian Financial ReviewJohn DavidsonColumnist
Sep 22, 2026 – 5.00am
A
ll we wanted was a longer cable.
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John DavidsonColumnistJohn Davidson is an award-winning columnist, reviewer, and senior writer based in Sydney and in the Digital Life Laboratories, from where he writes about personal technology. Connect with John on Twitter. Email John at jdavidson@afr.com
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