New beds

          So, my boyfriend and I have been wanting to buy a new bed. Sounds random, right?
Well, what we currently have is this piece of shit mattress on a broken bed frame. Two pieces of shit, actually.
The springs pop out and stab us during the night, when you sit on it it bends in the middle so it's so uncomfortable, and it squeaks, so when we have sex all you hear over my moaning is "squeak, squeak, squeak." It's so annoying. The bed frame is also currently being held up by cinder blocks. That's sad and ghetto. The wood underneath it is broken and sticks out like a sore thumb, not to mention it's also unsafe.
          The kind of bed we want to buy is a sleep number bed.
Or so I thought. I just read a lot of reviews on the beds, and they aren't all that great.
I mean, yeah, there are good reviews, but I'm interested in the low rating reviews just to see what kind of problems people were having. They've had problems like having to replace parts of their beds several times, it not being comfortable like the ones in the store were, and other things that made me stop and think- what if we have the same problems?
          So then I decided to look at the Tempur-Pedic beds. They're SO FREAKING EXPENSIVE!
$2,000 just for a mattress? And then you need to add the bed frame, so that's even MORE money!
This is not going smooth like I planned it to.
I know we can have payment plans, and oh do we plan to do that!
But this is getting ridiculous.
          Any suggestions? I'm lost, but we need a new bed NOW!
I suffer from back pains way too much for my age- I'm only 19!
I cannot stand what we sleep on now, I want to cry at night from the lack of comfort.
-sigh-

..Thank you for your time.