The head of the 6inch Reflux Guard is 6 inches high (from 0.001″). If you need higher the Reflux Guard is adjustable and can be slide down closer to the foot end of the bed and raise the 6inch to 7, or 8 inches high
Same with the 4″ wedge, from 4 inches to 4.2inches and so on (up to 6″ high)
You sleep on your full mattress.
You can't sleep on your side or stomach with a pillow wedge. with Reflux Guard you can.
Not some uncomfortable wedge that you could roll off and will fall on the floor.
REFLUX GUARD has a convenient retention strap (sold separately) for easy travel and storage.
The retention strap comes in very handy when transporting your Reflux Guard.
On the go? Just roll up the wedge, Attach the strap and BooYa. you are ready for travel