TY Sleep EuroSlat FoundationFEEL the the EuroSlat Foundation difference creates individual control of lower back support creates individual control of shoulder and hip pressure relief allows air flow reducing humidity Twin $729~ Twin XL $729 ~ Full N A ~ Queen $1109 ~ King $1459 It just makes sense that you should be able to add support specifically at your lower back and lessen pressure for your shoulder and hips. Without this control it always risky buying a bed. The good news