The Sleep Number Cyber Monday sale is still live with up to $1,200 off — this is the bed I recommend as a sleep tech tester

Browsing the Sleep Number Cyber Week sale for a great value, customizable smart mattress? My top recommendation is the c4 smart bed with added sleep tracking and adjustable firmness. It's a lot of mattress for the money, especially right now as you can save 20% on select smart mattresses at Sleep Number. That reduces the cost of a queen c4 to $1,519 (was $1,899).

Like many of the best smart beds and mattresses we've tested here at Tom's Guide, the Sleep Number c4 is complete with integrated sleep tracking sensors (so you can can ditch the wearables in bed) and adjustable firmness (you can can fine tune the feel of your bed to suit your sleep position and body type).

At $1,899 for a queen size at MSRP, the c4 is one of the most affordable smart beds out there and with Sleep Number's extended Cyber Monday mattress sale, you can get it at even better value this week. All of the top-rated options in our best mattress guide are lower in price today, so if the c4 isn't right for you, there's plenty of choice elsewhere.

Sleep Number c4 smart bed (queen): was $1,899 now $1,519.20 at Sleep Number

Part of Sleep Number's 'Classic' entry-level line, the c4 smart bed is one of the most affordable smart beds on the market. $1,519 is fantastic value on a customizable smart bed (you can expect to pay $4,199 for a queen Saatva Solaire, a more luxury take on an adjustable firmness bed). We often see 15% or $200 off the c4 smart bed in Sleep Number mattress sales, but the current discount cuts it to the lowest price of the year. The queen price is just $120 off the 2020's sale price - a fair increase considering five years of inflation have passed. Shipping costs $250 at Sleep Number, unless you add a base — integrated or adjustable — to your order, then it's free.

User score: ★★★★½ (21,800+ reviews)

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Is the Sleep Number c4 smart mattress?

Affordability doesn't mean low quality when it comes to the c4 smart bed. This bed is built with gel foams and adjustable air chambers so you can find the right firmness level and amount of pressure relief for your body.

It has dual controls, making it especially worth it for couples who can't agree on firmness. You can alter each side of the bed independently from the other to suit different firmness preferences. Side sleepers can enjoy a more cushioning surface while their back sleeping partner snoozes on a firmer bed.

It even responds to your movements through the night with air chambers adjusting accordingly to ensure your body is contoured and you remain as comfortable as possible. Hence, it is a worthy investment for people kept awake by hip, neck or back pain. The automatic firmness adjustment will help any relieve pressure building up in joints.

Read more: Are Sleep Number beds worth it? I’m a sleep tech tester and here’s my take

Working with a smaller budget?

Sleep Number c2 smart bed (queen): was $1,299 now $1,039.20 at Sleep Number

If your budget doesn't quite stretch to the c4 smart bed, you can still experience Sleep Number's sleep tracking and customizable sleep experience with the c2 smart bed. With 20% off now, you can get a queen size for just $1,039.20 (was $1,299), which is cheaper than the usual sale price of $1,104.15.

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