How to combine twin mattresses

Written by ariel phillips
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How to combine twin mattresses
Two twin mattresses fit nicely on a king-size bed frame. (bed image by Leonid Nyshko from

Combining twin mattresses to make a king-size bed is an economical way of creating a larger bed. Using two mattresses to form one bed is a practical way of creating a guest bed or bed upgrade without having a go through the painful and costly act of bed-shopping. Putting the mattresses together isn't a difficult process.

Skill level:

Things you need

  • Mattress topper
  • Ttwin bed connector (optional)
  • King-size bed frame
  • King-size mattress bed sheets
  • Bed bridge (optional)

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  1. 1

    Place one twin mattress on the king-size frame.

  2. 2

    Place the second twin mattress on the king-size frame. Push the second mattress tightly against the first one. Both mattresses should be laying parallel and lengthwise on the bed frame.

  3. 3

    Seal the twin mattresses together and conceal the space between the mattresses, using a bed bridge. You do not have to use a bed bridge and can get by fine without one.

  4. 4

    Place a mattress topper over the mattresses to further conceal the crack between the mattresses, hold the mattresses together, and add more comfort to the bed. You can use a twin bed connector mattress topper, which is made specifically for combining two twin mattresses.

  5. 5

    Put the sheets and other bedding on the bed. Finish making the bed.

Tips and warnings

  • If you don't have a king-size bed frame, use two twin bed frames as long as the bed frames fit flush together and the crack between the beds is hardly noticeable.

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