BUILD YOUR OWN ULTIMATE SLEEP SYSTEM. We allow you to TOTALLY CUSTOMIZE YOUR ULTIMATE AIR BED SLEEP SYSTEM. IT'S REALLY QUITE SIMPLE! 1) Choose the top that best suits your needs. 2) Choose whether you want a Single Air Chamber, for overall firmness, or Dual Air Chambers, that gives each person the control over their own firmness. 3) Choose either the Standard Air Inflation System that comes with your Series or Upgrade to a Superior Model. (SEE FREE UPGRADES!) 4) Add a Matching Foundation (recommended) or use your existing one. 5) If purchasing a Matching Foundation, we recommend Universal Bedlegs. (7- inch are standard, 10-inch gives you more storage) 6) Choose any Accessories that will add to your Ultimate Sleep Experience! CONGRATULATIONS! YOU’VE JUST BUILT YOUR ULTIMATE AIR BED SLEEP SYSTEM!