We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication.Bed-sharing couples rarely like the exact same kind of mattress, and that's where the i8 Smart Bed shines. Each side is customizable, allowing each person to alter the mattress' firmness at any time. Right now, Sleep Number is having a Memorial Day sale with discounts of up to 50% and free delivery. Its flagship product, the i8 Smart Bed, is 30% off. I've been loving mine, and it has changed both my and my partner's sleep for the better. Mattress only i8 Mattress, King $3,289.30 at Sleep Number $4,699.00 Save $1,409.70 Get Deal Get Deal $3,289.30 at Sleep Number $4,699.00 Save $1,409.70 Mattress only i8 Mattress, Queen $2,799.30 at Sleep Number $3,999.00 Save $1,199.70 Get Deal Get Deal $2,799.30 at Sleep Number $3,999.00 Save $1,199.70 Mattress only i8 Mattress, Twin $2,379.30 at Sleep Number $3,399.00 Save $1,019.70 Get Deal Get Deal $2,379.30 at Sleep Number $3,399.00 Save $1,019.70 SEE 0 MORE These smart beds from Sleep Number aren't cheap, but they're supposed to last about twice what a regular mattress lasts, with a minimum of 15 years, according to Sleep Number's warranty (regular mattresses last about seven to eight years). Aside from the adjustable firmness, a very cool feature is the bed adapts to your position to keep you comfortable, so if you change to sleeping on your side in the middle of the night, the bed will adjust the firmness so you don't wake up with a sore shoulderI've been using the i8 Smart Bed for nearly a year, and it has helped me learn a lot about my sleep over time. The companion app tracks how long it takes me to fall asleep, my restful sleep, restless sleep (how much tossing and turning I'm doing), and how long it takes me to get out of bed (I've been making a conscious effort now to get rid of doom scrolling in the morning). I also get a Sleep Number score that is based on many metrics to tell me the quality of the sleep I got that night. Based on my score, the app gives me recommendations to improve it.You don't need to buy the integrated base (which you have to buy separately) if you have a bed frame with a flat surface. If your frame has slats, they should be no more than two inches apart. There is an air pump that needs to be plugged into an outlet, and you'll need space under or next to the bed to store it.