So I'm a bigger guy (around 280) and I've been through two mattresses in three years. Both started sagging in the middle after about a year. I'm starting to wonder if my cheap Amazon bed frame is the real culprit. It's one of those metal foldable ones with slats that are like 3 inches apart. Should I be looking at a more solid frame before I drop another grand on a mattress? How much does the frame actually matter for us heavy folks?
Bed Frames
How important is the bed frame for preventing sagging
Following this. I'm 250 and my mattress is already dipping after 8 months. I have a box spring though, not slats. Wondering if that's worse.
Frame matters a lot, but slats matter more. 3 inches is way too wide for a heavy sleeper. You want slats no more than 2 inches apart, ideally 1.5. And they need to be thick. Cheap metl frames flex and that flex transfers to the mattress.
I'm not heavy but I lurk here because my ex was. He bent a metal frame just by sitting on the edge. The frame is literally the foundation. Would you build a house on wet cardboard? No. Get a solid wood or reinforced steel frame with a center support rail.
Also, center support is non-negotiable for queen and king. A lot of cheap frames skip it. Your mattress is basically a bridge with no pier in the middle.
Honestly I think it's 50/50. A bad frame will kill a good mattress, but a great frame won't save a cheap mattress. What mattresses were you buying? If they were sub-$500 memory foam, that might be the bigger issue.
Wait, so is a box spring bad for heavy people? Should i ditch mine? It's a traditional coil box spring.
Old-school coil box springs are basically a trampoline for heavy sleepers. They break down fast. Most modern mattresses want a solid platform or slats anyway. Check your warranty, some void it if you use a box spring.
Just put a sheet of plywood over the slats. Problem solved. Cost me $30 at Home Depot. Not pretty but neither is my back pain.
plywood works but you lose airflow, can get mold if you're sweaty. I'd rather spend $200 on a decent frame than risk a biohazard under my bed.
Seconding the center rail thing. My ex's frame had one and his mattress still looked new after 2 years. His previous one without it? Humped like a camel in 6 months. Not a scientist, just an observation.