Review Sleep Number i8 mattress review 2025: A smart bed with dual adjustable firmness and integrated sleep tracking

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The Sleep Number i8 promises hourly pressure readings to provide automatic comfort adjustments, 95 firmness options and integrated sleep tracking — but does all that tech mean a better night's sleep? We tested it for a month to see.

Sleep Number i8 mattress review 2025: A smart bed with dual adjustable firmness and integrated sleep tracking : Read more