If I remember correctly, it is from noon to noon, but I can't remember where I saw the info.

Medical equipment such as CPAP machines are regulated in manner very similar to that of prescription drugs, and require a prescriber's order for purchase.

Many thanks. I figured it out after reading the SmartLink Manual on the Devilbiss Health Care web site. I do appreciate your confirming what I found. I'm pretty excited about getting the machine today. I picked up a copy of my sleep study results from the doc yesterday and was pretty shocked. After ...