Sleep Number c2 Mattress Review

Scott White
Chief Sleep Researcher
Updated 3 Days Ago

With a zoned design, the Sleep Number c4 bed allows customizing areas like the shoulders, hips, and back for ergonomic alignment. Temperature balancing technology helps maintain a comfortable sleeping temperature all night long by sensing and adapting to each sleeper's needs. The C4 offers advanced personalization zones at a moderate price point.


Offers the same level of care and quality across the brand. Buying from an established brand ensures reliability and future customer support.

Offers a range of mattresses with varying comfort levels, all priced affordably under $500. Their pricing is nearly half that of some large brands, making them an excellent choice for budget-conscious shoppers.

Eliminates 99.9% of harmful microorganisms, providing a clean, bacteria-free sleep surface and contributing to the mattress's longevity.

Our Recommendation

While this is a impressive option, one name stands out as our number one pick: the Saatva mattress. We rigorously research and review mattresses to help you find the perfect night's rest. Our top pick, the Saatva mattress, stands out for its unparalleled comfort, superior support, and durability. Crafted with eco-friendly materials and multiple firmness options, it's the cost-effective choice for your best sleep yet. Discover the magic of Saatva and elevate your sleep experience.



You prefer a simple mattress without tech controls

You prefer an all-foam mattress


You want to experience a Sleep Number bed

You are a back sleeper

You sleep with a partner

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 2024)?

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 2024.
  2. Puffy - feels like you're sleeping on a cool cloud (at a good price).
  3. Ghostbed - beautiful, plush cover w/ aerated latex and healthy spinal alignment.
  4. Winkbeds - 3-stage back relief with free shipping and returns.

Read our short, well-researched 10 Best Mattresses of 2024, here. Our ultimate goal is to help you pick your perfect mattress online, today!




What makes Sleep Number c2 unique?

The Sleep Number c2 is part of the Sleep Number Smart Bed series, offering personalized comfort through adjustable air chambers. It provides dual-sided adjustability, allowing both you and your partner to choose your desired firmness levels.

How does Sleep Number c2 regulate sleep temperature?

The Sleep Number c2 mattress is air-based, which helps promote airflow and keeps it cooler compared to denser memory foam mattresses. The air chambers and breathable cover contribute to maintaining a comfortable sleep temperature.

Can Sleep Number c2 help with back pain?

Yes, the Sleep Number c2 is a suitable choice for individuals with back pain. The adjustable firmness levels allow you to find the optimal support and pressure relief for your lower back and hips, helping alleviate discomfort.

What is Sleep Number c2's trial period and warranty?

The Sleep Number c2 comes with a 100-night risk-free trial period, allowing you to try the mattress in your own home. It is also backed by a limited warranty, which covers manufacturing defects and premature sagging.

Does Sleep Number c2 offer free delivery?

Sleep Number offers various delivery options, including free shipping for certain promotions and locations. It's recommended to check the specific details during the purchasing process to confirm the availability of free delivery.

Is Sleep Number c2 environmentally friendly?

There is no explicit information provided regarding Sleep Number c2's environmental practices. For those seeking more eco-friendly options, it's advisable to research Sleep Number's sustainability initiatives or consider mattresses with specific environmental certifications.

How does Sleep Number c2's pricing compare to other brands?

The Sleep Number c2 is positioned as an affordable model within the Sleep Number lineup. While it may be pricier than some traditional mattresses, it offers the unique air-based technology and personalized comfort options associated with the Sleep Number brand.

Can Sleep Number mattresses be used with adjustable bases?

Yes, Sleep Number mattresses, including the c2 model, are compatible with adjustable bases. This allows you to further customize your sleep position and find the most comfortable setup for your needs.

Is Sleep Number's customer service reliable?

Sleep Number is known for providing reliable customer service. They strive to assist customers with their inquiries, provide guidance during the purchasing process, and address any concerns or issues that may arise.

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