It’s a great twin air mattress. I’m 5’5” and I fit it perfectly without feet hanging out. I installed batteries and let it run, thinking it needed more air since it didn’t look firm. The instructions do say not to let it run past 5 minutes so I shut it off and tried the mattress. To my surprise, it was ready and felt comfortable. I suppose if you want it firmer, you can pump air in it with a hand pump, but it feels pretty good as is.
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