Like many others we replaced our stock mattress with a better one. The new mattress was to heavy for the stock struts to remain in the open position. I read about relocating the strut position on a different thread on this forum. Simply move the upper and lower strut attachment point 4" closer to the foot of the bed. This took about 15 minutes per side and costs nothing. Only disadvantage is you loose about 2" of upward travel but with our 10" thick mattress it doesn't matter since it hits the ceiling when fully open. Try this first, you may save some money.