There are not much differences between one memory foam to the next but as mentioned before they all have their unique attributes. Lucid is another customer favorite mattress. Its customer reviews is also very good, already 2,450+ customer reviews with 4.1 out of 5 feedback. The main point is they give you 25 years warranty. So your are fully tension free. This items price is $849.99. If you buy from amazon you will get around 70% discount. This is only limited time only. Just check on Amazon and get your best mattress. It has a medium feel and designed to keep your body aligned. If you have problem with your spine then this mattress is made just for you. The mattress is 10 inch thick and with 2.5 inch memory foam comfort layer and has 7.5 inch polyurethane foam base. Its soft doughy quickly adjusts to your body weight and pressure.