Note that some modern mattresses have pumps built into the side of the mattress. In this case, simply flip the “on” switch, and, provided the pump is receiving power either from an outlet or batteries, it will start to inflate the mattress.

If you can’t get a tight seal around the pump (for instance, if you’re using a pump that wasn’t made for the mattress), you may want to try laying duct tape around the pump to keep it seated in the valve, though this can be ineffective if the pump is very loose. Another option is to melt plastic around the pump to make it thicker and give it a tighter seal, though this can present challenges for novice repair experts. [1] X Research source

Note that electric pumps are usually quite loud, so you may want to be careful about running them around where others are sleeping.

Hand pumps: Usually large, standing pumps operated with an “up-and-down” motion. However, smaller hand-operated bicycle-style pumps are occasionally used. Foot pumps: Usually take the form of a foot pedal attached to a hose and nozzle; stepping on the pedal repeatedly forces air into the mattress.

Note that air mattresses with one-way valves will automatically trap air inside. It’s still a good idea to screw the cap back on for these mattresses to provide another layer of protection against deflation. Mattresses with simple air holes (and no valves), on the other hand, will immediately begin to deflate as soon as the pump is removed, so you’ll need to screw the cap back on quickly!

Be sure to use cool air, not hot air, if you have a choice. Most air mattresses are made from plastic or vinyl, which can sometimes melt or deform if exposed to high heat.

It’s even possible to convert some ordinary home vacuum cleaners to blow air instead of sucking it up. To do this, remove the bag and connect a long, narrow cleaning nozzle to the hole that the bag was originally attached to — air will shoot out of this nozzle and can be used to inflate your mattress. [2] X Research source

If you have a choice, use heavy-duty trash bags for this method. Weaker bags are vulnerable to popping under your weight

If your air mattress doesn’t have a one-way valve, you’ll need to keep your mouth pressed into the air hole and close your throat to keep air from escaping between breaths. Breathe through your nose to fill your lungs rather than using your mouth.

Look for an air-release switch to flip Turn an air-release mechanism on the valve to let air escape Unscrew the valve itself from its housing

To force absolutely all of the air out of the mattress, try making small, tight folds or rolls like you might do to force toothpaste out of its tube.