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Details - Rating Blender Details - Rating Blender

Sleep Number Review

Rating: 6.9
Verified
Buy Sleep
The Sleep Number C2 mattress is an adjustable mattress that allows users to customize firmness levels from 3.5 to 9 on a scale of 10. It features a 9.5-inch design with a 3.5-inch foam comfort layer atop a 6-inch air-filled rubber bladder. The mattress excels in cooling, response time, and sex performance but has lower scores in motion transfer and company policies. Key performance aspects include excellent cooling due to minimal heat retention, variable sinkage based on firmness settings, high motion transfer, fast response time, mixed edge support, good sex performance, decent pressure relief, and strong initial off-gassing. The mattress is best for those who prefer a medium to firm feel and prioritize adjustable firmness and cooling.

Scores and Quotes

Show by review site Show by Category
review matrix
7.4
  • 9.4
    Sex

    The mattress scores well for sex due to its high bounce and good edge support when sitting.

  • 9
    Cooling

    The mattress performed excellently in cooling tests, with minimal heat retention due to its air-filled bladder and limited foam thickness.

  • 9.7
    Response Time

    The mattress has a fast response time, making it easy to move around without feeling stuck.

  • 9
    Bounce

    The air bladder creates significant bounce.

  • 6.8
    Motion Transfer

    The C2 has a high level of motion transfer, which may be a concern for couples, as the air bladder creates significant bounce.

  • 6
    Pressure Relief

    Pressure relief is decent but not exceptional, as the comfort layer is relatively thin and soft, leading to some pressure point build-up.

  • 5
    Edge Support

    Edge support is mixed; while sitting support is good, lying support is lacking due to the nature of the air bladder.

  • 4
    Off-Gassing

    Initial off-gassing was reported as strong, lasting about 10 days.

7.8
  • 9
    Motion Transfer

    The Memory Foam series features excellent motion isolation.

  • 8
    Edge Support

    The Classic series is noted for strong edge support.

  • 7
    Cooling

    The Performance and Innovation series include cooling technologies.

  • 7
    Pressure Relief

    The Performance series offers targeted comfort areas for pressure relief.

2.0
  • 2
    Pressure Relief

    The mattress fails to maintain firmness overnight, leading to discomfort and potential pain for users.

9.3
  • 10
    Motion Transfer

    Excellent motion isolation, making it ideal for couples

  • 9
    Cooling

    Effective cooling mechanism that draws heat away from the body

  • 9
    Pressure Relief

    Significant pressure relief, particularly for individuals with joint pain

8.0
  • 8
    Cooling

    The mattress includes a cooling memory foam layer that helps regulate body temperature.

  • 8
    Pressure Relief

    The mattress has proven supportive and comfortable for both partners, despite their differing preferences.

7.3
  • 9
    Cooling

    Effectively manages temperature, drawing away heat or providing warmth as needed

  • 8
    Motion Transfer

    Limits motion transfer, allowing partners to move without disturbing each other

  • 5
    Edge Support

    Edge support is average

7.7
  • 8
    Motion Transfer

    Good motion isolation, making it suitable for couples

  • 8
    Pressure Relief

    The mattress includes a 2-inch PlushFit foam layer with five zones designed to alleviate pressure points across the body

  • 7
    Cooling

    The breathable knit fabric cover enhances air circulation

7.5
  • 8
    Pressure Relief

    Many users report significant pain relief, particularly for back pain.

  • 7
    Cooling

    Models like the P6 and I7 include temperature regulation and cooling technology.

4.0
  • 3.5
    Motion Transfer

    "Motion Transfer: 3.5/5"

  • 4
    Cooling

    "Cooling: 4/5"

  • 4.4
    Edge Support

    "Edge Support: 4.4/5"

8.0
  • 8
    Cooling

    The mattress is designed to draw heat away from the body, promoting a cooler sleeping environment.

4.0
  • 6
    Edge Support

    The mattress is noted for its edge support, making it comfortable to sit on the side.

  • 3
    Motion Transfer

    The bed's motion transfer is rated poorly, making it feel unstable when one partner moves.

  • 3
    Cooling

    The mattress tends to run hot, which may not be suitable for those who sleep warm.

Response Time
9.7
  • 9.7
    naplab.com

    The mattress has a fast response time, making it easy to move around without feeling stuck.

Sex
9.4
  • 9.4
    naplab.com

    The mattress scores well for sex due to its high bounce and good edge support when sitting.

Bounce
9.0
  • 9.0
    naplab.com

    The air bladder creates significant bounce.

Cooling
7.1
  • 9.0
    naplab.com

    The mattress performed excellently in cooling tests, with minimal heat retention due to its air-filled bladder and limited foam thickness.

  • 9.0
    www.forbes.com

    Effective cooling mechanism that draws heat away from the body

  • 9.0
    www.cnet.com

    Effectively manages temperature, drawing away heat or providing warmth as needed

  • 8.0
    communikait.com

    The mattress includes a cooling memory foam layer that helps regulate body temperature.

  • 8.0
    nypost.com

    The mattress is designed to draw heat away from the body, promoting a cooler sleeping environment.

  • 7.0
    www.ncoa.org

    The Performance and Innovation series include cooling technologies.

  • 7.0
    www.sleepare.com

    The breathable knit fabric cover enhances air circulation

  • 7.0
    sleepopolis.com

    Models like the P6 and I7 include temperature regulation and cooling technology.

  • 4.0
    www.mattressclarity.com

    "Cooling: 4/5"

  • 3.0
    www.businessinsider.com

    The mattress tends to run hot, which may not be suitable for those who sleep warm.

Motion Transfer
6.9
  • 10.0
    www.forbes.com

    Excellent motion isolation, making it ideal for couples

  • 9.0
    www.ncoa.org

    The Memory Foam series features excellent motion isolation.

  • 8.0
    www.cnet.com

    Limits motion transfer, allowing partners to move without disturbing each other

  • 8.0
    www.sleepare.com

    Good motion isolation, making it suitable for couples

  • 6.8
    naplab.com

    The C2 has a high level of motion transfer, which may be a concern for couples, as the air bladder creates significant bounce.

  • 3.5
    www.mattressclarity.com

    "Motion Transfer: 3.5/5"

  • 3.0
    www.businessinsider.com

    The bed's motion transfer is rated poorly, making it feel unstable when one partner moves.

Pressure Relief
6.9
  • 9.0
    www.forbes.com

    Significant pressure relief, particularly for individuals with joint pain

  • 8.0
    communikait.com

    The mattress has proven supportive and comfortable for both partners, despite their differing preferences.

  • 8.0
    www.sleepare.com

    The mattress includes a 2-inch PlushFit foam layer with five zones designed to alleviate pressure points across the body

  • 8.0
    sleepopolis.com

    Many users report significant pain relief, particularly for back pain.

  • 7.0
    www.ncoa.org

    The Performance series offers targeted comfort areas for pressure relief.

  • 6.0
    naplab.com

    Pressure relief is decent but not exceptional, as the comfort layer is relatively thin and soft, leading to some pressure point build-up.

  • 2.0
    www.reddit.com

    The mattress fails to maintain firmness overnight, leading to discomfort and potential pain for users.

Edge Support
5.7
  • 8.0
    www.ncoa.org

    The Classic series is noted for strong edge support.

  • 6.0
    www.businessinsider.com

    The mattress is noted for its edge support, making it comfortable to sit on the side.

  • 5.0
    naplab.com

    Edge support is mixed; while sitting support is good, lying support is lacking due to the nature of the air bladder.

  • 5.0
    www.cnet.com

    Edge support is average

  • 4.4
    www.mattressclarity.com

    "Edge Support: 4.4/5"

Off-Gassing
4.0
  • 4.0
    naplab.com

    Initial off-gassing was reported as strong, lasting about 10 days.