[LPT] Splurge on a couple of pillows (per head) next time you're on the market.

Better quality pillows, ones that hold firm through a good washing, will last exponentially longer.

Your quality of sleep will go up. It probably doesn't make as much difference as a mattress,

but at the cost of ~50 bucks (for 2) vs 500-5000 bucks, the value is sky high.

That 50 dollars is relative, too. If you can't afford much, that's all you need.

If you're already spending that, then double it and see what that brings.

If you're spending a couple hundo per, this post probably ain't for you.