PrimaSleep 10 Inch Twin Size Gel Memory Foam Mattress - Medium Firm, CertiPUR-US Certified, Pressure Relief & Cooling Comfort, Bed-in-a-Box (Grey) - Perfect for Guest Rooms, Kids' Beds & Small Spaces

Ok , I just received my mattress ( full size ) and it came exactly when they said it would ( 5 days ). My wife and I unboxed it , took all the wrap and plastic off and it decompressed to 9 inches in about 5 minutes ! Contrary to several reviews , there was absolutely no odor . I am going to wait the full 48 hrs as recommended in the instructions before I set it up for sleeping . It seems to be very well constructed and the blue and white is sharp although that does not matter once the bedding is applied. To the touch , I could already tell that this is going to be a very comfortable mattress. It has just enough give and plenty of support. This may have been only $189 but make no mistake , this is not a cheaply made bed. The true test will come in 2 days when I get to actually sleep on it but I am very confident I will not be disappointed . Just like others , I too did my research and read plenty of reviews . But like music , comfort is subjective. So I take reviews with a grain of salt . The general consensus is that most people are very happy with it. Some people nit pick every aspect of a product as if they spent their life savings on it . Look , this is an under $200 mattress and in that regard you get a lot . You could spend 5 times that and wind up being no better off . Paying for a name and fancy ads does not always mean " better ". I will be writing another review after I get to use it for a while and I may wind up eating my words here today . But I really don't think so . My only concern is durability. If this bed retains its shape and is comfortable in a year , then it is a winner in my book. If not , then I am out $189 and it's back to square one . I can deal with that. There are some people out there paying $189 a month for 2 years for a bed ! Must be nice . To be continued ............ UPDATE . It has now been 7 months since I bought this mattress and I have to say I am very impressed so far. Has held up perfectly and is still very very comfortable . Definitely a winner so far !