No more joint pain: Save $1,284 on Sleep Number’s top smart mattress this Labor Day

(Image credit: Sleep Number) Labor Day is here, making now one of the best times to invest in a new mattress for less — and I've got my eye on a certain Sleep Number smart bed. The ComfortNext Lux Mattress, now up to $1,284.75 at Sleep Number, is a smart mattress designed to provide advanced relief to side sleeper's shoulders and hips.This year's best mattresses balance comfort and support, and the ComfortNext Lux does just that. Like most picks in our best smart mattress guide, the ComfortNext Lux boasts adjustable firmness, with 100 different firmness levels to choose from. We're in the process of reviewing this bed, but our lead tester has already reported that he's waking up "more refreshed and with less joint pain." Today's your last chance to shop the Labor Day mattress sales before prices go back up, so let's take a closer look at this deal...Advanced comfort to side sleepers and couples...The brand describes the ComfortNext Lux as possessing "superior" pressure relief, aiming to reduce build-up in key side sleeper pressure points: shoulders, hips and knees.Its 100 adjustable firmness levels acknowledge that firmness is subjective, with some side sleepers needing firmer comfort than others. Plus, back and stomach sleepers should be pleased that the ComfortNext Lux is built to provide good lumbar support.As for bed-sharing couples, the good news is that you can select your own firmness settings independent of the other side of the bed. This means that if your partner prefers a firmer bed while you like a softer mattress (or vice versa), you can choose your respective firmness levels and cancel the sleep divorce.Looking for something a little cheaper?Labor Day mattress sales 2026: More top deals at a glanceSaatva Classic – best overall: From $1,049 (was $1,449) at SaatvaZinus Green Tea Memory Foam Mattress – dorm room savior: From $173 at AmazonHelix Midnight Luxe – best for side sleepers: From $1,119 (was $1,492) at HelixDreamCloud Classic – best value: From $429 (was $1,346) at DreamCloudBear Elite Hybrid – best cooling: From $1,298 (was $1,998.80) with TOMS40 code at BearBrooklyn Bedding Copperflex Pro – best value cooling: From $652 (was $932) at Brooklyn BeddingTempur-Pedic Tempur Cloud and smart base – best bundle deal: From $1,718.40 (was $2,598) at Tempur-PedicAvocado Green – best organic: From $1,279 (was $1,599) at AvocadoPurple Plus - best for joint pain relief: From $1,280 (was $1,599) at Purple Get instant access to breaking news, the hottest reviews, great deals and helpful tips. Frances Daniels is a PPA-accredited journalist and Sleep Staff Writer at Tom's Guide with an MA in Magazine Journalism from Cardiff University. Her role includes covering mattress and sleep news and writing sleep product reviews and buyer's guides, including our Best Hybrid Mattress 2025 guide. She is interested in the relationship between sleep and health, interviewing an array of experts to create in-depth articles about topics such as nutrition, sleep disorders, sleep hygiene, and mattress care. She is also our specialist on mattress toppers — producing bed topper reviews and taking care of our Best Mattress Toppers 2025 guide — and leads content relating to fiberglass-free beds for a non-toxic sleep. Outside of Tom's Guide, she has written for Ideal Home and Marie Claire.