I’ve been a C-5 quadriplegic ever since a football injury in college 24 years ago. For the first 19 years, I struggled with pressure issues – always nightly monitoring redness & hotspots, knowing a single inattentive long work day might mean a skin break, and constantly dealing with pain. The first time I got up on an Airpulse PK was as I departed on an intercontinental vacation five years ago – I was not able to get back off the cushion into a bed until 30 hours later, and I was amazed to find that my skin looked and felt better than when I left! I’ve never looked back. Your product has really changed my daily comfort and indeed my life ever since, and has never failed me once in five years of travels, hard work, and hard play. Thank you!