Trampolines have proven useful tools for children when it comes to exercising, reaching out-of-reach objects, or beginning lucrative careers in atmospheric research. Keep heads in the clouds with today's Groupon to Sky High Sports in Niles. Choose between the following options:

• For $9, you get two hours of jump time Monday–Thursday (up to a $19 value).
• For $11, you get two hours of jump time Friday–Sunday (a $22 value).
  
  

Blanketed in wall-to-wall trampolines, Sky High Sports delights barefoot fun seekers with springy terrain and an exclusive court for jumpers 8 and younger. Guests can hone front flips, back flips, and belly flops during intense free-bounce sessions. Each trampoline comes loaded with a specially designed spring-loaded frame and thick 2-inch safety pads that grant patrons a landing cushier than a corner office at a marshmallow factory. Stuffed with blocks of spongy, body-molding material, a foam pit dares treasure seekers to fling themselves in or scour its depths for the lost contents of bygone pockets. Pintsize aerialist posses can safely practice their synchronized salchows on 360 degrees of trampoline walls while court supervisors watch from the sidelines and bequeath hard-earned praise with oversize scorecards. Though not included in this Groupon, Sky High offers AIRobics fitness classes and monthly dodgeball tournaments to help jumpers explore the outermost stratospheres of trampoline possibilities.