Gravellaire Sleep Mattress in a Box
A mattress in a box for anyone setting up a bedroom without the showroom hassle.
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Reading Walmart’s product page for the details…
The Gravellaire Sleep Mattress in a Box is a 10-inch queen hybrid that pairs gel memory foam with an innerspring core and a Eurotop cover. It is sold compressed and rolled, so it expands after unboxing. The only new price on record is $157.99 at Walmart as of November 3, 2026, which is very low for a queen hybrid and worth weighing against the thin build and limited track record.
The 4.3 out of 5 from 82 ratings suggests most owners are satisfied, which is a decent signal for a budget boxed mattress. Expect praise for value and comfort at the price, with some complaints about firmness and long-term support.