The best replacement for air bed is cot.

The best alternatives to air bed are rated as following:
★★★★★  cot
★★★★  air mattress
★★★★  waterbed
★★★  futon
★★★  self inflating mat
★★  self inflating mattress
★★  stretcher
★  mattress
★  water bed
★  camp bed
  self inflating
  aerobed

Your alternative for air bed is not listed? Suggest!
Speaking about air bed, one probably shouldn't forget about cot.

Other search terms related to air bed and their ratings are:
★★★★★ cot
You have in mind a companion for air bed and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of air bed in all years. Click on graph for more.
air bed
cot
air mattress