
The Sleep Number i8 is a smart bed that offers a range of features to enhance your sleep experience. One of its key features is its advanced temperature control, which utilizes a combination of technologies to maintain a comfortable sleeping temperature. The i8 mattress incorporates a layer of ceramic-infused foam, which absorbs and releases excess heat to regulate sleeping temperature. This cooling technology is further enhanced by the use of ceramic gel, which provides additional temperature regulation. The i8 also includes a remote control and app-based controls, allowing users to adjust the firmness and support of the mattress to their personal preferences, contributing to a comfortable and supportive sleeping environment. With its combination of temperature-regulating technology and adjustable comfort features, the Sleep Number i8 offers a unique sleep experience tailored to individual needs.
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What You'll Learn

Temperature-balancing technology
The Sleep Number i8 is a smart bed that offers a combination of advanced temperature balancing and plush, pressure-relieving support. The mattress includes layers with four times more ceramic gel to release excess heat for temperature-balancing comfort. The highly supportive layers conform to your body so you stay comfortable. The Sleep Number i8 is the brand's most popular model, balancing strong temperature control with plush pressure relief and next-level sleep tech.
The i8 is one of five mattresses in Sleep Number's Smart Bed Series, which includes the P5, P6, I7, and I10 beds. The "I" in "I8" stands for "innovation," pointing to the temperature-balancing technology included in most beds in the series. The mattress has a 12" profile, measured from the base of the mattress to its highest loft. The mattress will come with either one or two air chambers, depending on the size of the bed. The air chambers will inflate and deflate according to the Sleep Number setting, which will determine the level of support and firmness the mattress provides.
The Sleep Number i8 includes Sleep IQ technology, which will track someone's sleep and help them find their optimal Sleep Number setting. The Sleep Number is determined by the preferred firmness level. The higher the Sleep Number, the more air in the air chambers, and the firmer the mattress. The i8 mattress also features a 6" comfort layer of ceramic-infused foam, which is designed to create a cooler sleeping experience as it absorbs excess heat throughout the night and releases it as you cool.
The i8 mattress also includes a 3" layer of PlushFit foam, which is advertised as being capable of releasing pressure in seven specific body areas: your feet, lower legs, hips, knees, shoulders, head, and lower back. The mattress also includes a 1" foam base pad, which provides overall support for the mattress and keeps the bottom layer of the air chambers protected. The remote control of the i8 is compatible with all Sleep Number mattresses and is designed to be simple and intuitive for users of all ages.
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Temperature control with pressure relief
The Sleep Number i8 mattress is a smart bed that combines advanced temperature control with pressure relief. The i8 mattress is part of Sleep Number's Innovation Series, which includes the I-10 and I-LE mattresses. The i8 is the brand's most popular model, balancing strong temperature control with plush pressure relief.
The i8 mattress has a 12" profile and comes in ten size options. The mattress will come with either one or two air chambers, depending on the size of the bed. The air chambers will inflate and deflate according to the Sleep Number setting, which is controlled via a remote or an app. The higher the Sleep Number, the more air in the air chambers, and the firmer the mattress. The Sleep Number of every individual i8 user is determined by their preferred firmness level.
The i8 mattress features a 6" comfort layer of ceramic-infused foam, which is designed to create a cooler sleeping experience by absorbing excess heat throughout the night and releasing it as the sleeper cools down. This layer also provides pressure relief to seven specific body areas: the head, shoulders, lower back, hips, knees, lower legs, and feet. The mattress also includes 3" of PlushFit comfort foam, which provides cushioning and a softer feel.
The i8 mattress also offers Sleep IQ technology, which tracks sleep and helps users find their optimal Sleep Number setting. This technology is included in the price of the mattress. Overall, the Sleep Number i8 mattress provides a combination of advanced temperature control, pressure relief, and smart features for a premium sleep experience.
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$16.89 $17.99

Temperature-regulating technology
The Sleep Number i8 mattress is part of the brand's Innovation series, which includes advanced temperature-regulating technology. The mattress features a blend of polyester and polypropylene fabrics, known for being soft and breathable.
The i8 mattress includes a 6-inch comfort layer of ceramic-infused foam, which is designed to create a cooler sleeping experience. The foam absorbs excess body heat throughout the night and releases it as the sleeper's body temperature cools down. This feature is particularly useful for hot sleepers, ensuring a comfortable sleep all year round.
The i8 mattress also comes with a remote control, which allows users to adjust the amount of air in the air chamber and find their perfect "Sleep Number" for firmness and support. The mattress will inflate or deflate according to the Sleep Number setting, which ranges from 0 to 100. The higher the Sleep Number, the more air in the air chambers, and the firmer the mattress.
Additionally, the Sleep Number i8 mattress features Sleep IQ technology, which tracks a user's sleep and helps them find their optimal Sleep Number setting. This technology is integrated with a compatible app, providing personalized sleep insights. The mattress also includes advanced pressure relief features, with a PlushFit foam layer that releases pressure in seven specific body areas: the feet, lower legs, hips, knees, shoulders, head, and lower back.
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Ceramic gel temperature regulation
The Sleep Number i8 is a smart bed that includes temperature-balancing technology. This is achieved through the use of ceramic gel layers that help to regulate temperature by releasing excess heat. The bed is designed to keep users from sleeping too warm or too cool, with the gel layers providing temperature-balancing comfort.
The i8 smart bed offers a premium sleeping experience with its advanced temperature control and pressure-relieving support. The bed includes a remote control and smart device compatibility, allowing users to adjust the firmness and support of the mattress to their individual preferences. The bed also provides sleep tracking and personalized insights via a compatible app.
The ceramic gel layers in the i8 smart bed work to regulate temperature by acting as a heat sink. The gel absorbs excess heat from the body, helping to cool the sleeper and maintain a comfortable sleeping temperature. This heat absorption and dissipation process is facilitated by the gel's high thermal conductivity, which allows for efficient heat transfer. Additionally, the gel layers are designed to conform to the body, providing pressure relief and support while also aiding in temperature regulation.
The use of ceramic gel in the i8 smart bed's temperature regulation system offers several advantages. Ceramics are known for their high-temperature resistance and ability to withstand extreme environments. This makes ceramic gel a durable and reliable material for temperature regulation. Additionally, ceramics have low thermal conductivity relative to metals, which helps to prevent heat transfer to the sleeper and maintain a comfortable sleeping temperature.
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Outlast temperature technology
The technology works by using phase change materials (PCMs) that are incorporated into fabrics and fibres. These materials absorb, store, and release excess heat. This proactive heat management prevents moisture from building up in the first place, rather than just dealing with sweat after it has formed.
Outlast's temperature regulation technology has been used in a variety of applications, including bedding, apparel, footwear, outdoor sports, home furnishings, packaging, military, and medical markets. For example, Outlast has combined its temperature regulation technology with the flame retardant Protal to create a woven fabric that is soft, comfortable, and technically impressive. This fabric has been used in the motorsport industry to help racing drivers manage extreme temperatures and has been shown to significantly reduce heart rate, breathing, core temperature, and sweating.
Outlast's temperature-regulating technology can also be used to create a balanced temperature in your sleep environment, promoting deeper sleeping behaviour. Additionally, it can be used in functional clothing for leisure activities such as hiking or gardening to reduce the risk of catching a cold.
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Frequently asked questions
The i8 Sleep Number mattress has a combination of layers with 4x more ceramic gel to release excess heat for temperature-balancing comfort. The mattress also includes Sleep IQ technology, which will track someone’s sleep and help them find their optimal Sleep Number setting.
The i8 Sleep Number comes with a remote control that is compatible with all Sleep Number mattresses. The remote has four intuitive buttons accompanied by a small display. The buttons allow you to choose between the left and right sides of the mattress, while the up and down arrows allow you to navigate through sleep numbers from 0 to 100.
The Sleep Number setting determines the level of support/firmness the mattress provides. The higher the Sleep Number, the more air in the air chambers, and the firmer the mattress.











































