New Mattress or a Topper?

[4Campers]

I bet there have been many similar threads here, but a search found nothing for me. What I'm looking for is any advice on the use of a foam topper vs buying a new mattress for our pup.
Been looking at prices, and a topper made of memory foam runs about $150 to 200. I see a replacement mattress can run up to $300-400+. A foam/memory foam layered topper is cheapest at under $100. Anything has to be better than what we're sleeping on, which is just a 4" piece of dense foam in a cloth bag. Has anyone had experience using a topper to replace the foam piece in their pup bed? Should we go memory foam, a foam/memory foam mix, or should we just put out the bucks and get a mattress?
Thanks in advance for any help!

[jkhomes]

I bought a memory foam topper from Overstock.com and trimmed it down to fit my almost king size pop up mattress.  It was the best thing I ever did and I sure don't need a new mattress.

[austinado16]

I bought a Costco "nova-foam" brand 2" thick topper for our almost King sized bunk...scored it brand new on Craigslist for $50.  Bought a 1-1/2" thick one for the DD's bunk from Target for $19.  We put the toppers right on top of the original mattresses and sleep fantastic.  We leave the mattresses in place when closing up the camper.

[Gracy]

They had the egg crate (yellow) kind on clearance at Walmart (at least at my walmart they did) over the weekend.... I think for like $20 - $25 each.  I've heard peeps say they use those.

[jpcjtrtj]

We went to Tuesday Morning and bought a memory foam matress topper.  Best investment ever.  It came with a bag that keeps it clean.  We used to take the one off the bed every weekend, but  buying a second one and  leaving this in the camper has been awesome.

jps

[jkhomes]

Egg crate foam is not the same.  Definitely pay the extra for the memory foam.  I just gave all our egg crate foam to Goodwill.