How To Deflate a Air Mattress: Simple Steps and Common Questions

If you’re searching for “How To Deflate a Air Mattress,” you’re likely packing up after guests, cleaning up after a camping trip, or storing your mattress between uses. Deflating an air mattress sounds straightforward, but doing it the wrong way can be slow, frustrating, and even damage the mattress over time.

This guide explains how to deflate an air mattress properly, how to do it with or without a pump, and what to watch out for so your mattress stays in good shape.

What’s the Best Way to Deflate an Air Mattress?

The best method depends on whether your mattress has a built-in pump, a separate pump, or no pump at all. In every case, the basic idea is the same:

  1. Open the valve fully
  2. Let as much air escape as possible on its own
  3. Gently push or roll out the remaining air
  4. Fold and store it in a cool, dry place

Step-by-step: With a Built-in Pump

Most modern air mattresses with built-in pumps make deflation easy:

  1. Clear the surface
    Remove bedding, pillows, and anything that could puncture or crease the material.

  2. Switch the pump to “Deflate”
    Many built-in pumps have separate “Inflate” and “Deflate” settings. Turn the dial or switch to Deflate.

  3. Open the valve if needed
    Some models deflate just by switching modes; others still require you to unscrew or uncap the air valve.

  4. Let the pump run
    Allow the pump to pull air out until the mattress looks flat and soft.

    • Avoid leaving the pump running far longer than needed, as this can add unnecessary wear.

  5. Flatten and fold
    Once the pump stops removing noticeable air, smooth the mattress by hand, pressing or gently walking (in socks) from the far end toward the pump to remove any trapped air.

How To Deflate a Air Mattress Without a Built-in Pump

If your air mattress doesn’t have a built-in pump, you can still fully deflate it with a separate pump or by hand.

Using a Separate Pump

Some external pumps have an “air out” or reverse setting:

  1. Attach the pump hose to the deflate side
    Look for a label like “Out,” “Deflate,” or a similar symbol.

  2. Connect the hose to the mattress valve
    Ensure it fits snugly to avoid pulling in outside air.

  3. Turn on the pump
    Let it run until the mattress looks mostly flat.

  4. Finish by hand
    Disconnect the pump, then press or roll the mattress toward the valve to remove remaining air.

Deflating With No Pump at All

You can still manage How To Deflate a Air Mattress effectively when you don’t have a pump:

  1. Open the valve completely
    Unscrew or uncap the valve fully so air can escape freely.

  2. Let gravity do some work
    Leave the mattress for several minutes so most air escapes on its own.

  3. Press out air gently
    Starting at the end farthest from the valve, use your hands, forearms, or knees to smoothly push air toward the valve.

    • Avoid sharp folds or jumping on the mattress, which can stress the seams.

  4. Roll tightly toward the valve
    Once mostly flat, roll the mattress like a sleeping bag, from the opposite end toward the valve so remaining air is forced out.

How Do You Fold and Store an Air Mattress After Deflating?

Correct folding helps prevent creases, cracks, and slow leaks over time.

  • Lay the mattress flat in a clean, dry area.
  • Fold lengthwise once or twice, depending on the size, so you have a long strip.
  • Roll or fold from the bottom toward the valve, pushing out any last pockets of air.
  • Avoid very tight folds that bend the vinyl sharply in the same spot every time.
  • Store in a cool, dry place, away from direct sunlight and extreme temperatures.

Common Mistakes When Deflating an Air Mattress

Understanding How To Deflate a Air Mattress also means knowing what not to do:

  • Forcing the pump to overwork
    Running a built-in pump too long after the mattress is already flat adds stress to the motor without benefit.

  • Jumping or stomping on the mattress
    This can stress seams, stretch the material, and increase the chance of leaks.

  • Folding with trapped air
    Leaving large air pockets makes the mattress bulky and can strain seams and valves during storage.

  • Storing while damp
    Moisture can lead to odors and surface damage over time. Let the mattress dry fully before packing it away.

Troubleshooting: What If the Mattress Won’t Fully Deflate?

Sometimes it feels like there’s always a little air left. A few tips:

  • Check the valve
    Make sure it’s completely open and not partially blocked by fabric or the hose.

  • Change your folding direction
    Try rolling from a different side so trapped air can find its way to the valve.

  • Use gentle body weight
    Kneel or press with your hands and arms rather than using sharp pressure or shoes.

If the mattress still seems puffy even after thorough deflation and rolling, it may be due to thick materials or internal beams that naturally hold a bit of shape even without air. This is usually normal as long as it folds and stores comfortably.

✅ Quick Mattress Takeaways

Key points to understand about How To Deflate a Air Mattress

  • Always open the valve fully before trying to push or roll out air.
  • With a built-in pump, use the Deflate setting first, then smooth and roll by hand.
  • Without a pump, let gravity release air, then roll from the far end toward the valve.
  • Avoid jumping, stomping, or tight, repeated folds that can damage seams.
  • Store your mattress dry, lightly rolled or folded, and out of extreme heat or sunlight.

Knowing How To Deflate a Air Mattress correctly makes packing up faster, protects the material, and helps your mattress stay dependable every time you use it.