If you find yourself in need of inflating an air mattress without a pump, a hairdryer can be a handy tool. To use this method, make sure the hairdryer has a cool setting and remove the diffuser attachment if it has one. Start by partially inflating the mattress by blowing air into it with your mouth until it is firm enough to hold its shape. Then, hold the hairdryer a few inches away from the valve and turn it on to the cool setting. Direct the airflow into the valve, making sure it is securely fastened. The cool air will help expand the air inside the mattress and inflate it fully in a matter of minutes.1. Use a hairdryer
If you have a vacuum cleaner with a reverse or blow function, it can also be used to inflate an air mattress. First, partially inflate the mattress by blowing air into it with your mouth until it is firm enough to hold its shape. Then, attach the vacuum hose to the valve and turn on the reverse or blow function. This will cause air to flow out of the vacuum and into the mattress, quickly inflating it to its full size.2. Use a vacuum cleaner
If you don't have access to any tools or appliances, you can still inflate an air mattress using a garbage bag. To do this, partially inflate the mattress by blowing air into it with your mouth. Then, open up a garbage bag and hold it open over the valve. Press down on the bag to push air into the mattress. Once it is partially inflated, seal the bag and continue pressing down to fully inflate the mattress.3. Use a garbage bag
If you don't have a garbage bag on hand, a plastic bag can also be used to inflate an air mattress. Partially inflate the mattress by blowing air into it with your mouth and then seal the valve tightly. Place the plastic bag over the valve and press down on it to push air into the mattress. Continue pressing down until the mattress is fully inflated.4. Use a plastic bag
For a quick and easy method, a balloon can also be used to inflate an air mattress. Simply partially inflate the balloon by blowing air into it and then stretch the opening around the valve of the mattress. Squeeze the balloon to push air into the mattress and continue until it is fully inflated.5. Use a balloon
If you have a bicycle pump on hand, it can also be used to inflate an air mattress. Attach the pump to the valve of the mattress and begin pumping air into it. Make sure the valve is securely fastened and continue pumping until the mattress is fully inflated.6. Use a bicycle pump
If you have a hand pump designed for inflating air mattresses, this will be the most efficient method to use. Attach the pump to the valve of the mattress and begin pumping air into it. Make sure the valve is securely fastened and continue pumping until the mattress is fully inflated.7. Use a hand pump
If you're in a pinch and don't have any tools or appliances available, a straw can also be used to inflate an air mattress. Partially inflate the mattress by blowing air into it with your mouth and then seal the valve tightly. Place the straw into the valve and press down on the mattress with your hand to create a seal. Blow air through the straw into the mattress until it is fully inflated.8. Use a straw
If you have a large water bottle or container with a narrow opening, it can also be used to inflate an air mattress. Partially inflate the mattress by blowing air into it with your mouth and then seal the valve tightly. Insert the opening of the water bottle or container into the valve and gently squeeze it to push air into the mattress. Continue until the mattress is fully inflated.9. Use a water bottle
If you have a leaf blower on hand, it can also be used to quickly inflate an air mattress. Attach the blower to the valve of the mattress and turn it on. Make sure the valve is securely fastened and hold the blower a few inches away from the valve. The powerful air flow will quickly inflate the mattress to its full size.10. Use a leaf blower