The c2 bed does not come with a foam mattress pad on top of the air chamber. (All other Sleep Number mattresses come with a Comfort Foam layer.) Instead, it has a soft fiberfill sewn into a thin layer right above the air chambers. This is a great option for people who love firm beds - especially side sleepers.

Inside the mattress, people will find one or two air chambers, depending on the size of their mattress. Sleep Number calls this “DualAir™ adjustability” and it allows people to adjust firmness and support on each side of the bed to their Sleep Number setting. The hoses to pump air into the chamber are 4ft in length.

This queen-size adjustable-air mattress from Sleep Number measures 8 inches high and weighs 32.5 pounds. It has no grips for handling. This queen-size adjustable-air mattress from Sleep Number measures 8 inches high and weighs 32.5 pounds.

The Classic Series contains the brand's most affordable beds, ranging from about $1,000 to $2,500 for a new queen mattress. The Performance Series is designed to focus on pressure relief. Expect to pay between $2,700 and $3,200 for a queen-size bed in the Performance line.

Composition C2, used a mixture of 80% RDX and 20% plasticizer. There are three classes of C4, with varying amounts of RDX and plasticizer but it has a much wider temperature range between being gummy at the higher end and brittle at the lower end of the temperature range.

Ordinary mattresses tend to need replacing every 8-10 years, but the Sleep Number® smart bed is designed to last 15 years or more. Sleep with confidence, as any warranted repair or replacement is also fully covered the first year, then prorated based on your purchase date.

15 years Ordinary mattresses tend to need replacing every 8-10 years, but the Sleep Number® smart bed is designed to last 15 years or more. Sleep with confidence, as any warranted repair or replacement is also fully covered the first year, then prorated based on your purchase date.

The higher the number, the more firm the bed will be. Most people have a Sleep Number between 30-60; any lower than 30 or higher than 60 will result in a bed that will (most likely) feel uncomfortably soft or hard. Unfortunately, it's impossible to spit out a single number that is best for all side sleepers.

For foam, Hybrid mattresses you want to be looking at a minimum of 25cm and for Latex we would advise 20cm and above. Latex is far more responsive and progressive so you don't need as much of it for the same effect.

They vary in cost from $999 for the Sleep Number 360® C2 Smart Bed to $5,099 for the Sleep Number 360® i10 Smart Bed. A defining feature of this collection is its SleepIQ technology.

15 years Ordinary mattresses tend to need replacing every 8-10 years, but the Sleep Number® smart bed is designed to last 15 years or more. Sleep with confidence, as any warranted repair or replacement is also fully covered the first year, then prorated based on your purchase date.

The LG C2 OLED is slightly better than the LG C1 OLED, although the performance of the two is quite similar. The C2 is a bit brighter, especially in SDR and when displaying small, bright highlights in HDR.