Purchased to replace a good quality 20 year old 5 inch sofa bed spring mattress. All my searching produced was 1) It appears no one makes a Gel memory foam in 5 . Memory foam yes, with gel no. 2) If you search for 4.5 you will find them but in fine print they all appear to be 4. Same with this one. Took a chance. Easy to unbox, and open VacPak. Placed it on top of 1 inch eggcrate foam on top of sofa bed deck, over 24 hours expanded to 4 not 4.5 inches. I still felt the bar though less than on original mattress. Wife could not feel it. Loved the thing. Folded back into frame well. (Why not? With egg crate foam it was 5). Sitting on folded in sofa is now more comfortable as well. 1 star off for the missing 1/2 inch.
Good Replacement
Purchased to replace a good quality 20 year old 5 inch sofa bed spring mattress. All my searching produced was 1) It appears no one makes a Gel memory foam in 5 . Memory foam yes, with gel no. 2) If you search for 4.5 you will find them but in fine print they all appear to be 4. Same with this one. Took a chance. Easy to unbox, and open VacPak. Placed it on top of 1 inch eggcrate foam on top of sofa bed deck, over 24 hours expanded to 4 not 4.5 inches. I still felt the bar though less than on original mattress. Wife could not feel it. Loved the thing. Folded back into frame well. (Why not? With egg crate foam it was 5). Sitting on folded in sofa is now more comfortable as well. 1 star off for the missing 1/2 inch.