A full night's rest is crucial to good health outcomes, but it's not so easy to sleep well with an inadequate mattress. Let's face it: a new mattress can quickly add up in cost, which makes upgrading to a better bed an intimidating prospect. But anyone looking for an upgrade might benefit from perusing through Sleep Number's early Black Friday deals, which offer smart mattresses for as much as 50% off. Sleep Number is also offering discounts on pillows, sheets and furniture. We'll break down their deals below so you can maximize savings. These deals last until December 2.

Sleep Number offers smart beds, sheets, pillows and bedroom furniture that cost up to $4,000. These current offers let you save up to 50%, saving you potentially thousands on a new bed and its associated gear. On top of this, Sleep Number is offering free delivery when you purchase a new base along with your new mattress.

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Sleep Number is offering its iLE limited edition 360° smart bed for 50% off on all sizes right now. That means you can score a queen bed for $2,749, down from its usual price of $5,499. This mattress has multiple layers, adjusts firmness as you move and keeps you cool as you sleep. They're also offering the Sleep Number c2 mattress for $300 off -- a great buy for budget conscious buyers who need an upgrade. For those who like a plush mattress, the Sleep Number i8 smart bed is now 30% off, which means you can nab a queen i8 smart bed for $2,799, down from $3,999.

Need a new mattress but aren't sure if this deal is for you? Check out our list of the best mattress deals so you can compare options before you shop.