Just wondering if it’s a good idea to rotate a foundation every once is a while, I’d say once per season?
I noticed after using slats on my old IKEA platform bed, the upper slats where most of body weight is applied when sleeping seems to get softer and slightly flex over time when compared to the lower slats where hardly to no weight is applied, this is over he course of 10+ years of use and maybe only rotating the slats few times in that time frame either from moving the bed or moving into a new house.
Seeing that foundations these days are either wooden based with slats within or semi-flex with wood and metal material, I would think over time just like the slats in platform beds the material will start to wear in and may create undesirable soft spots which might be remedied by rotating the foundation every now and then.
Bowed slats on platform bed certainly can become more flexible over time, depending upon their level of quality. Rotating the placement of the slats can even out their wear over time. With most of the modern wood platform mattress foundations (not platform beds), they use very few slats on top - often only 5-6 with a cardboard deck - and once those sag in the center or in between the slats themselves you’d be better off to replace the unit. I don’t know if rotating those would have much of an increase in life as most of your weight is in the center of the base and with so few slats you really wouldn’t be making much of an improvement in durability. With the semi-flex units, you certainly can rotate once a year if you like but again if you start to see a certain area of the unit take a set you would want to replace it. However you could see a bit of a benefit, especially on the side of the foundation you get in and out, with these rotations to distribute the load over time.