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  2. Adjustable bed - Wikipedia

    en.wikipedia.org/wiki/Adjustable_bed

    The support of the mattress comes from the flexibility of the slats and their elastic mountings on the frame. The slatted bases are economic price-wise and can be lifted with lightweight actuators. The more advanced structure is the fully flexible base; it provides support to the mattress in every pressure point.

  3. Mattress coil - Wikipedia

    en.wikipedia.org/wiki/Mattress_coil

    Mattress coils, also known as mattress springs, are coil springs used in a mattress. Coils are primarily used in the core (support layer) of innerspring mattresses , which is their original use. In recent years, small "micro-coils" are being used in the upholstery (comfort layer) of mattresses, primarily with a coil core ("coil-on-coil ...

  4. Memory foam - Wikipedia

    en.wikipedia.org/wiki/Memory_foam

    A memory foam mattress is usually denser than other foam mattresses, making it both more supportive and heavier. Memory foam mattresses are often sold for higher prices than traditional mattresses. Memory foam used in mattresses is commonly manufactured in densities ranging from less than 24kg/m 3 (1.5 lb/ft 3) to 128kg/m 3 (8 lb/ft 3) density

  5. The best comfy air mattresses of 2024 - AOL

    www.aol.com/news/best-comfy-air-mattresses-2024...

    The King Koil Pillow Top Plush air mattress is the tallest mattress on our list, which measures 20 inches high. Parikh likes how quickly it inflates (under two minutes, according to the brand) and ...

  6. Mattress - Wikipedia

    en.wikipedia.org/wiki/Mattress

    Some innerspring mattresses have memory foam in their upholstery layer. Different feels and comfort levels are achieved by varying the thickness, weight and formulation of the viscoelastic foams and the base foams. Latex and memory foam mattresses each provide a unique feel. This type of mattress is good at relieving pressure on painful joints.

  7. Automatic lubrication system - Wikipedia

    en.wikipedia.org/wiki/Automatic_lubrication_system

    The control system may involve human input or may be computerised (computer numerical control or CNC). [2] [3] There are advantages of using an automatic lubrication system over a manual system. For example, there are savings in the costs of human resources. The dangers of accessing difficult to reach lubrication points while a machine is ...

  8. File:PAR model.pdf - Wikipedia

    en.wikipedia.org/wiki/File:PAR_model.pdf

    Size of this JPG preview of this PDF file: 800 × 322 pixels. ... Pressure and Release model after Blaikie et al. (1994). ... human=<your username> to this Template.

  9. Sleep medicine - Wikipedia

    en.wikipedia.org/wiki/Sleep_medicine

    Sleep diary layout example. Sleep medicine is a medical specialty or subspecialty devoted to the diagnosis and therapy of sleep disturbances and disorders. [1] From the middle of the 20th century, research has provided increasing knowledge of, and answered many questions about, sleep–wake functioning. [2]