Mattresses From Eight Sleep to Tempur-Pedic — here are the best 4th of July deals on smart cooling mattresses to help you beat the heat
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Wellness
Mattresses 
Fitness Trackers Fitbit Air performance issues? 3 ways to make sure the Fitbit Air accurately tracks your next workout
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Fitness I’m a personal trainer — this mobility move opens up the chest and spine so much better than stretching
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Fitness I swapped my usual ab routine for these 3 dumbbell exercises for a week — here's what happened
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Smartwatches The Samsung Galaxy Watch 8 just crashed to $218 — but it won’t stay this cheap long
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Mattresses 'The ultimate mattress for couples' — Saatva's adjustable firmness bed is $525 off in 4th July sales
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Sleep I was exhausted every morning until I tried this simple bedroom upgrade (and it's on sale right now)
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Fitness I review gym apparel for a living: 7 deals on The Gym People gear that people are calling 'a gentle hug' and 'super flattering'
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Fitness I test dozens of running shoes each year and these are the 3 best deals still available for Prime Day
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Fitness I'm a marathon runner, and the New Balance shoes I use every day just fell by $80 for Prime Day
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