Rating 2/5 I guess if you only want...level, then buy one. However,...you'll notice that the sagging seems... This is displacement at it's...of big pockets of low-pressure air....you laid on a half-inflated inner...the middle and it would bulge...same thing happens here. Just...sag wherever the weight of your...air will also lift the places...creating the illusion of more sag,...I said above, this definitely will...during the day. But if...it because your back hurts from...on a sagging mattress, this will...only way to get actual support...which can get surprisingly firm (WAY...sleep on the floor, it's much...idea, but it's executed poorly. ...be MUCH smaller so displacement can't...foam to increase support.

Rating 4/5 When I saw it I was...beautifully. Pumping up the chambers is...will take a while. I needed...test the bed after letting out...

Rating 4/5 I was not hopeful, I was...return this product in anticipation of...fact, upon receiving the product, I...all packing materials as I was...

I was wrong....thing actually works. It comes...package, no instructions, just the Mattress...patch kit, lol. It takes...to suit the wear pattern on...take a few days to discern;...areas need more or less lift)... I slept great last night...mattress (the first brand new mattress...be real, it's a $300 mattress,...you pay for in the mattress...years old. In fact, I...this product has made the bed...when brand new - keeping in...economy mattress.

Anyhow, I definitely...don't have to go out and...at least a year or two?...We'll see, but so far, so...

Rating 5/5 We Purchased 2 Mattress Medics for...yrear old mattress!

Unbelievable...that had all 4 sagging corners...medic Its back to perhaps 98%...