How to Connect Two Twin Mattresses

Written by paul seaburn
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It's easy and relatively inexpensive to convert two twin mattresses into one king-size bed. Most linen stores or stores with linen departments sell twin bed bridges that will cover the uncomfortable crack formed when the beds are pushed together. A piece of egg-crate foam the size of the two beds or a thick foam king-size mattress pad will also work. If you don't have a king-size bed frame, you'll want to tie the beds together in some fashion so no one ends up falling in the gap. Rope or plastic clothesline will work and can be found at most hardware stores. Egg crate foam can be purchased at hobby or sewing stores.

Skill level:

Things you need

  • Length of rope or plastic clothes line
  • Twin bed bridge
  • A piece of egg crate foam the size of two twin beds (if not using a twin bed bridge)
  • King-size foam mattress pad or cover (if not using egg crate foam)

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  1. 1

    Push the twin beds together and measure all the way around. Purchase a length of rope or plastic clothes line long enough to go completely around the beds with enough left over to tie the ends together securely.

  2. 2

    If you are using a twin bed bridge, place it between the beds and make sure it is flattened out.

  3. 3

    Whether you are using the bridge or not, circle the rope or clothes line around the beds and tie the ends tightly. Lie down on the beds and roll around to make sure the beds don't move apart.

  4. 4

    If you are not using the twin bed bridge, cover the beds with a piece of egg crate foam (bumpy side down) or a foam mattress pad.

  5. 5

    Cover the beds with a king-size sheet and the king-size bed is ready for sleeping.

Tips and warnings

  • Stores that sell beds and bedding often have kits for connecting two twin mattresses. The kits include a bridge and an adjustable strap for holding the mattresses together.

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