I use insulated Exped air mats that fit both my hammock and tent very well. They both came with the Exped Schnozzel Air pump. A large thin cloth bag with an Exped integrated connection nozzle. Scoop the bag full of air, seal the end, connect to the pad and press the air into the pad. After a few times, you can fill the pad with two or three bags at most, I count them as push-ups. The bag can be used as a mildly waterproof stuff sack or fill and use as a pillow. The material its made of weighs almost nothing. I just roll it up with the sleeping bag or Rumpl that I slept in. For true weight weenies, a pump of any kind isn't really necessary with today's air pads. It's not like the 15 lb. hand-me-down rubber Colman air mattress I used as a kid. It would take 10 or 12 attempts to fill it and that was if I didn't pass out with the rubber cork out and have to start over. Or your dumb ass siblings didn't let the air out as you slept... wait, that was me.

Schnozzel Pumpbag UL M | Exped USA