Casper Slate Firm 10.5" Mattress
Best price now
Compared across 3 stores. Prices are checked against each store and labelled with when.
Compared across 3 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Casper Slate Firm is an all-foam, medium-firm mattress sold as a tight-top bed in a box. It layers memory foam over a foam core with a soft-knit cover and a cooling top, aimed at back and stomach sleepers who want a flat, supportive surface. It sits below Casper's premium lines, so it skips the zoned support and thicker comfort layers of the Original and Dream models. Owners generally find it supportive and easy to set up, but some heavier sleepers say it feels thin and warm.
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Lowest price we've seen: $395.00 on Nov 9 at Mancini's Sleepworld. Tracked across 3 stores since Nov 9.
Owners describe the Slate Firm as a supportive, no-frills foam mattress that sets up fast and holds its shape. Most praise the firmness for back sleeping, while side sleepers and heavier buyers often find it too hard or too warm.




