Sleep Number c2 Mattress Review

Updated May, 2021
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While Sleep Number C2 is a fantastic mattress at this price point, our #1 pick for 2021 is SAATVA mattress. Saatva is a luxury mattress shipped to your door (unlike other bed in a box brands dropped off on your doorstep) w/ FREE white-glove delivery & setup. They have over 50,000 5-star reviews, and they're incredibly comfortable (for all sleep positions).

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Bottom Line

Sleep Number has been revolutionizing air mattresses for over three decades. They've designed Smart Beds that put you in control of your sleep. Dual-sided adjustable air chambers intuitively adapt to your movements. SleepIQ® tracking gives you a report on your sleep patterns. The Sleep Number c2 model is an excellent choice for those looking for the full Sleep Number experience at an affordable price. Try the c2 for 100 nights risk-free, today!

Get Sleep Number c2 if...

  • You want to experience a Sleep Number bed, without breaking the bank. The c2 is the most basic, yet most affordable Sleep Number model. You still get all the benefits, including your SleepIQ® score.
  • You are a back sleeper. The c2 model has a 2" comfort layer atop the air chambers, making it firmer than other models.  This firm feel is great at helping to alleviate lower back pain.
  • You sleep with a partner. The c2 comes with built-in dual-sided adjustability, so you and your partner can choose your own comfort levels.

Skip Sleep Number c2 if...

  • You want to keep things simple. The c2 model requires the use of either the Sleep IQ® mobile app or Sleep Number remote to control the firmness level. If you aren't particularly tech saavy, this might not be the right choice for you.
  • You want an all-foam mattress. All Sleep Number Classic Series models, including c2, use air chambers at their core to pump more or less air depending on your controlled settings.


  • Most affordable Sleep Number model
  • Dual-sided adjustability, ideal for couples who prefer different firmness levels
  • Effortlessly responds to your body and automatically adjusts accordingly


  • Bed requires assembly
  • Remote sold separately


The c2 Smart Bed is adjustable to your preferred firmness level with Sleep Number settings ranging from 1 (softest) to 100 (firmest).

The c2 model comes with a 2" gel-infused comfort layer (the most basic of the models), making it firmer to begin with. The air chambers allow you to adjust the firmness levels to your desired setting (whether that's sink-in soft or no push-back firm).

Construction Key Points

  • The Sleep Number c2 is 8" tall.
  • Cover - A blend of rayon and polypropylene fabrics with a soft fiberfill material sewn directly into the cover for nice, breathable comfort.
  • Comfort Layer - 2" gel-infused comfort layer provides proactive pressure-relieving support.
  • Air Chambers - Depending on the size, the c2 is built with either single or dual-sided air chambers. The chambers are connected to a 4-foot long pump (hidden within the mattress) that inflates or deflates your mattress based on your specifications.

Support & Motion Isolation

The Sleep Number c2 model has excellent motion isolation due to the two separate air chambers located on each side of the mattress. Any motion is contained to individual sides of the bed.

The c2 is constructed with foam border walls providing superb edge-to-edge support.

Since the air chambers on each side of the bed are individually adjustable, the middle is susceptible to a slight sag if one side is firmer or softer than the other.

Reasons to Buy Sleep Number C2

  1. If you have back problems, the Sleep Number c2 Bed is a perfect match. Being adjustable, the Sleep Number c2 model contours to your lower back and hips based on your preferred firmness level setting. This pressurized support brings ample pain relief where you need it most.
  2. This is a great choice for people who tend to sleep hot. The Sleep Number c2 Smart Bed keeps surprisingly cool as it's constructed with air rather than a denser memory foam.
  3. If you sleep with a partner, this bed is a perfect solution. The Queen size and up comes with 2 air chambers (one on each side) that allows you and your partner to adjust your side to your personal comfort level.

Where can I find a great, affordable mattress (in 2021)?

If you're searching for an affordable mattress that offers a wide range of comfort and pressure relief, we've compiled a list of mattresses for you to consider:

  1. Saatva Mattress - fantastic for all sleep positions, and is rated our Best Mattress of 2021.
  2. Idle Sleep - great for responsive pressure relief.
  3. Puffy - feels like you're sleeping on a cool cloud (at a good price).
  4. Ghostbed - beautiful, plush cover w/ aerated latex and healthy spinal alignment.
  5. Winkbeds - 3-stage back relief with free shipping and returns.

Read our short, well-researched 10 Best Mattresses of 2021, here. Our ultimate goal is to help you pick your perfect mattress online, today!

Check Price →
Get $200 off, purchases over $1000!

Saatva is our top pick for the #1 mattress in 2020! They're a luxury mattress shipped with FREE white-glove delivery & setup (different than regular bed in a box brands put on your doorstep). They have over 50,000 reviews.

Check Price →
Get $200 off your order of $1,000 or more, today!