My sleeping pad kept losing air until I spotted the tiny hole
I woke up on the ground a few times because my pad would go flat by morning. I finally found the leak by submerging it in a tub and saw bubbles from a pinprick near the valve. How do you usually check for leaks in your inflatable gear?
Soapy water seems messy and you risk getting suds inside the valve. I just inflate the pad fully, put my ear close to it, and listen for a faint hiss while running my hand over the surface to feel for air. It's a quieter method that doesn't leave any residue.